Pro max heads

Series One 175 SBF(Sold in Pairs) Series One 175 SBF. (Sold in Pairs) $ 979.00 – $ 1,565.00. The series 1 175cc SBF is an economical head that has all the right stuff. This head will make your SBF come to life. They have been on track tested weekly in a dirt late model. Put track tested performance in your small block Ford at a price that ...

Has 40 pounds of pressure and comes with five attachment heads and a carrying case. $399 at Amazon. $400 at Target. ... Redeem $1000 discount on iPhone 15 Pro and Pro Max - Best Buy coupon.ProMaxx Performance began business by revolutionizing the CNC cylinder head market. They specialize in cylinder heads for small block Chevy, big block Chevy, and small block Ford. ProMaxx designed their own CNC programs to port chambers, bowls, and runners to maximize air and fuel flow. JEGS stocks ProMaxx Performance Products at the best ... Maxx 200 SBC. (Sold in Pairs) The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383. Available with multiple spring options; Hyd Flat tap, Hyd Roller, Solid and Solid Roller. The Maxx 200 is the ultimate “as cast ... The pros and cons of each method are: Pre-compile 1 graph and process a prompt token-by-token Practical: 1 graph is compiled during warm-up; Slow: O(L) to process an input prompt length L - a disadvantage for long prompts; Pre-compile all graphs with input lengths ranging from 1 to max_seq_len (e.g. 2,048)Performance Cylinder Heads PROJECT X SERIES LS XXTREME SERIES SHOCKER SERIES MAXX SERIES SERIES ONE Diesel DIESEL Cummins GM Durramax Powerstroke Stock Replacement STOCK REPLACEMENT Chevrolet Chrysler Ford GM Isuzu ...

Basic components include U.S. made bronze valve guides, and ProMaxx 5-angle valve job. Assembled heads include 21-4N stainless valves, springs, retainers, 7/16'' rocker studs, guide plates, and viton seals (Bare heads do not include these items). Show More. Features: A356-T6 Aluminum Castings; Efficient Chamber Design; 5-Angle Competition Valve Job Apple iPhone 11 Pro Max smartphone. Announced Sep 2019. Features 6.5″ display, Apple A13 Bionic chipset, 3969 mAh battery, 512 GB storage, 4 GB RAM, Scratch-resistantThe Stage 4 LS3 cam is designed for un-milled heads. Both are stable to 7,000+ rpm with the lighter LS3 intake valves and quality spring packs. The Summit Racing Pro LS cams have more lift for better breathing. The Stage 2 and 3 cams are compatible with commonly available .600 in. lift spring packages.Free Shipping - PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads with qualifying orders of $109. Shop Cylinder Heads at Summit Racing. $5 Off Your $100 Mobile App Purchase - Get the App The ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm!Key to performance. With a powerful Apple‑designed H1 chip in each cup, our custom acoustic design, and advanced software, AirPods Max use computational audio to create a breakthrough listening experience. By tapping into each chip’s 10 audio cores, computational audio helps block outside noise, adapts audio to the fit and seal of your ear ...

Free Shipping - PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads with qualifying orders of $109. Shop Cylinder Heads at Summit Racing. $5 Off Your $100 Mobile App Purchase - Get the App The iPhone 13 Pro Max is undoubtedly one of the most sought-after smartphones in the market today. Packed with cutting-edge features and a sleek design, it’s no wonder why consumers are eager to get their hands on this device. However, the ...Maximum performance/full competition, unlimited oval and super classes. 7,000+ RPM, 400+ cubic inch engines. Dart PRO1 23° 227cc CNC heads are professional ...PROMAXX Performance Products specializes in all types of automotive cylinder head for any budget, carrying Performance cylinder heads, diesel cylinder heads and stock replacement cylinder heads. ProMAXX Performance has designed a complete new line of performance heads that meet or exceed the big names in the industry.Pro Elite Heads. The crown jewels of RHS are the Pro Elite line of heads. For big block Chevys, these aluminum heads are great for engines being built for drag racing thanks to their excellent list of features. RHS offers two different sizes of CNC ports on these heads. The first is designed for engines that are 468-540 cubic inches and ...

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Features. AirPods Max reimagine over-ear headphones. An Apple-designed dynamic driver provides immersive high-fidelity audio. Every detail, from canopy to cushions, has been designed for an exceptional fit. Active Noise Cancellation blocks outside noise, while Transparency mode lets it in. And spatial audio with dynamic head tracking provides ...PROMAXX Performance Products specializes in all types of automotive cylinder head for any budget, carrying Performance cylinder heads, diesel cylinder heads and stock replacement cylinder heads. ProMAXX Performance has designed a complete new line of performance heads that meet or exceed the big names in the industry.AirPods Pro (2nd generation) with MagSafe Charging Case (USB‑C) $249.00.Maxx 200 SBC. (Sold in Pairs) The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383. Available with multiple spring options; Hyd Flat tap, Hyd Roller, Solid and Solid Roller. The Maxx 200 is the ultimate “as cast ...

Daniel L. "The 3.5 mm headphone jack on the MacBook Pro (14-inch, 2021) or MacBook Pro (16-inch, 2021) features DC load detection and adaptive voltage output. Your Mac can detect the impedance of the connected device and will adapt its output for low- and high-impedance headphones, as well as for line-level audio devices.All performance series heads sold in pairs! Project X SBC 185 (SOLD IN PAIRS) $ 1,069.00 – $ 1,996.00 (SOLD IN PAIRS) $ 1,083.00 – $ 2,003.00 Project X SBC 215 (Sold in …Fixed Line. Made of high-quality materials and rugged construction, our Push-N-Load ® 4-Line Trimmer Head offers superior abrasion resistance and is highly durable for trimming, edging, and performing a variety of weed-eating tasks. And to save you time and frustration, it can be loaded and reloaded with pre-cut line strips in seconds.Find PROMAXX Performance Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing!Cumpara Telefoane IPHONE 14 PRO MAX. Intra pe site-ul altex.ro si alege produsele de care ai nevoie! Acum ai posibilitatea de a plati in rate si transport in toata tara. Altex - 2x diferenta la toate produsele.Cosworth CRF Pro Max Heads put out the power! Cosworth CRF Pro Max Heads put out the power! Cosworth ... nice dyno session this am on pala outdoor engine 2011 crf 250 pro level ama specs. All reactions: 3. 3 comments. Like. Comment. 3 comments. Andrew Humphrey.An envelope. It indicates the ability to send an email. An curved arrow pointing right. Tesla owners with the new iPhone 15 Pro have quickly begun taking advantage of the phone's new customizable ...Testing conducted by Apple in December 2020 using preproduction AirPods Max and software paired with iPhone 12 Pro units and prerelease software. AirPods Max placed on B&K Type 5128-C High-frequency Head and Torso Simulator (HATS). Volume was set to 100 percent with Active Noise Cancellation on.MAXX 225 SBC. (Sold in Pairs) $ 864.00 – $ 1,540.00. The Maxx 225cc SBC head is our largest “as cast” head in our line up, flowing close to 300 cfm @ .700″ lift. This head will support big power at a price that can’t be beat.The ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm! PROMAXX Performance Cylinder Heads - Free Shipping on Orders Over $109 at Summit Racing Filter Results by Vehicle Search New Vehicle Sort Sort By Product Line (a-z) Product Line (z-a) Part Number (a-z) Part Number (z-a) Price (low-high) Price (high-low) New Arrivals Records Per Page Home Cylinder Heads Product Results Filter by VehicleThe XXTREME LS 240 small bore head will take your LS1, LS2, or LS3 to levels that fully CNC ported OEM heads can't achieve. Back to back dyno tests show well known fully CNC ported heads fall 70hp short of this 240cc as cast monster. On identical engines, there is no comparison. Our small rectangle is a beast! 5.7 LS1 with moderate cams made over …

POWERHEAD OUTBOARD 812817R00 $4572.00 Remanufactured Outboard Powerhead. Replaces 2000-2001 Mercury or Mariner 175 Horsepower 2.5 Litre V-6 engines with O-ring design heads. EFI fuel …

Max Weber is credited as one of the three founders of sociology, but his most well-known contribution was his thesis that combined economic and religious sociology. This thesis proposed that ascetic Protestantism was associated with the ris...The base model of the iPhone 15 Pro Max comes with 256 GB of onboard storage—double that of the Pro’s 128GB base model—and you’ll find a $100 uptick …Series. The Shocker CNC Series is our top of the line performance cylinder head. It features professionally designed runners and chambers meticulously CNC ported in the U.S.A. Unlike most of our competitors, we don’t offer different quality CNC designs. At PROMAXX, we provide our elite series at prices that make our competition cringe. Maxx 190 SBC(Sold in Pairs) Maxx 190 SBC. (Sold in Pairs) $ 937.00 – $ 1,512.00. The 190 SBC is our 183cc runner head that has been CNC ported to match a 1206 Felpro gasket to pick up flow numbers for that little extra. Will make over 500 hp in a pump gas 383.Find PROMAXX Performance GM 6.5 Diesel Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance designed and developed these cylinder heads from the GM 6.5 diesel casting. They are cast iron direct bolt-on replacements for your 6.5L diesel engine. The assembled heads have straight intake …ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc) Project X Aluminum Cylinder Heads. Small Block Chevy. Intake Runner: 215cc. Spark Plug: Straight. Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems. Valve Angle: 23°.PowerTech Set - Delta - GM Gas Exhaust Manifold Bolt Repair. $749.95. Ford 3.5L / 3.7L EcoBoost Intake Manifold Repair (IMR) Kit. from $199.95. Ford 6.7L Power Stroke Oil Filter Adapter Broken 6MM Bolt Repair Kit - OPR. $329.95. HUBSPOT----- HUBSPOT-----. Repair Kits broken exhaust manifold bolts, wheel bearing puller, EGR tube, power stroke ... The MAXX Series is taking the affordable performance cylinder head to the next level. There is no comparison in the market. Our new ultra smooth casting made of Grade A 356-T6 aluminum is precision CNC machined to create the perfect platform for our new runner and chamber designs. This combined with our 5 angle competition valve job, diamond ... Pioneer Rayz Rally Lightning-Powered Conference Speaker - Space Gray. $69.95. Choose from: Apple,Beats by Dr. Dre,Pioneer.

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ProMaxx FOR850NB Bare Replacement Cylinder Head. $789.00. Universal. ProMaxx FOR851N Replacement Cylinder Head. $1,186.00. Universal. ProMaxx Performance Products offers a complete line of replacement …Maxx 171 SB Mopar(Sold in Pairs) Maxx 171 SB Mopar. (Sold in Pairs) $ 1,415.00 – $ 1,964.00. The Maxx 171 SB Mopar heads have finally given SB Mopar enthusiasts a choice. It not only out performs the competition; it is at a price that Mopar owners cannot believe. SNEAKER HEADS iPhone 13 Pro Max Phone Case. ₹899.00 ₹699.00 Save 22%. Tax included. Shipping All Over India. In stock, ready to ship. Add to cart. ADD TO WISHLIST. Description. Silicon.The Stage 4 LS3 cam is designed for un-milled heads. Both are stable to 7,000+ rpm with the lighter LS3 intake valves and quality spring packs. The Summit Racing Pro LS cams have more lift for better breathing. The Stage 2 and 3 cams are compatible with commonly available .600 in. lift spring packages.The Platypod Pro Max Camera Support is a wide, stable, and ultra low-profile platform that allows you to set up a large tripod head, camera, and lens on both horizontal and vertical surfaces.. Measuring 5.3 x 7.8" and only 0.2" thick, the Pro Max Camera Support allows you to photograph or record with a camera that is elevated only slightly higher than the tripod …ProMaxx Performance began business by revolutionizing the CNC cylinder head market. They specialize in cylinder heads for small block Chevy, big block Chevy, and small block Ford. ProMaxx designed their own CNC programs to port chambers, bowls, and runners to maximize air and fuel flow. JEGS stocks ProMaxx Performance Products at the best ... ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc) Project X Aluminum Cylinder Heads. Small Block Chevy. Intake Runner: 215cc. Spark Plug: Straight. Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems. Valve Angle: 23°.The XXTREME Series is our newest line performance cylinder head. It features professionally designed runners and chambers meticulously designed in the U.S.A. At PROMAXX, we provide our XXTREME series … ….

Pioneer Rayz Rally Lightning-Powered Conference Speaker - Space Gray. $69.95. Choose from: Apple,Beats by Dr. Dre,Pioneer.175cc Aluminum Small Block Ford Cylinder Heads Note: Use ARP head bolts with step washers for 302 engine blocks part number 070-154-3605 . 351W blocks use head bolts part number 070-154-3603. Maximum Spring Lift: .600" Hydraulic Roller SpringsPing G430 MAX 15* Degree #3 Wood Club Head Only - Very Good Condition 1095166. $269.99. Quick view Compare Add to Cart. LH Ping G430 MAX 15* Degree #3 Wood Club Head Only - Very Good Condition 1095099. $259.99. Quick view Compare Add to Cart. Ping G430 Max 18* #5 Fairway Wood Club Head Only Very Good 1105661.13 កញ្ញា 2023 ... Here, we've compiled a list of specs to put the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max head-to-head with the Galaxy S23 ...160.9 x 77.8 x 7.8 mm. (6.33 x 3.06 x 0.31 in) Apple. iPhone 15 Pro Max. 221 g. 159.9 x 76.7 x 8.3 mm. (6.30 x 3.02 x 0.33 in) Size-wise, there's little difference …Jul 2, 2020 · 185cc Aluminum Small Block Chevy Cylinder Heads. Technical Specifications and Recommended Components: Combustion Chamber - 64cc. Weight - 55.00 lbs. Intake Runner - 185cc. Exhaust Runner - 72cc. Intake Valve Size - 2.02". Exhaust Valve Size - 1.60". Max. An envelope. It indicates the ability to send an email. An curved arrow pointing right. Tesla owners with the new iPhone 15 Pro have quickly begun taking advantage of the phone's new customizable ...$1,232.00 PROMAXX Performance Maxx Series Small Block Ford Cylinder Heads Cylinder Heads, Aluminum, 180cc Intake Runner, 60cc Chamber, Ford, Small Block, Pair See More Specifications | Check the Fit Estimated Ship Date: Oct 23, 2023 Would you rather pick it up? Select Location Free Shipping Add To Cart Beat A Price Guarantee Wish List Compare Pro max heads, PS ULTRA PRO-SPRAY® PRS30 PRS40 Models (in) 2, 4, 6 Shrub, 2, 3, 4, 6, 12 Shrub, 4, 6, 12 Shrub, 4, 6, 12 Pressure Regulation — — 30 PSI 40 PSI CONTROLLERS PRO-C® X2TM PRO-HC Stations 4–32 modular, 6 or 12 fixed 4, 6, 8, 14 fixed 6,12,24 Features Compatible with EZ Decoder System Wi-Fi capable for remote access and online …, 22 កញ្ញា 2022 ... The iPhone 14 Pro Max and Galaxy S22 go head to head. Comments (1). iPhone 14 Pro Max vs Galaxy S22 Ultra. (Image credit: Future). Our iPhone 14 ..., The crashes of the 737 Max could create a branding problem for Boeing that outlasts the technical issues. One of the greatest achievements of modern aviation is the relative ignorance of the passenger who steps onto the plane. Few who are n..., I just built a 355 with ProMaxx Maxx 183 heads. Engine runs great and not looking for new heads, but I was looking at the AFR 195 Enforcer heads. I had never seen them before. I got to looking at the advertised flow numbers for the AFR's. Maxx183's flow a little better at lower lifts, but they are pretty equal at .500., We review A-MAX Auto Insurance, including its coverage, discounts, plan prices, claims processes and more. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners. I agree to Money's Terms of Use and ..., PROMAXX Performance Cylinder Heads - Free Shipping on Orders Over $109 at Summit Racing Filter Results by Vehicle Search New Vehicle Sort Sort By Product Line (a-z) Product Line (z-a) Part Number (a-z) Part Number (z-a) Price (low-high) Price (high-low) New Arrivals Records Per Page Home Cylinder Heads Product Results Filter by Vehicle, But the following year, shifting to the iPhone 14 Pro Max was a not-so-fun experience. Apple dropped the ball on battery life, the Dynamic Island wasn’t very useful …, The Platypod Pro Max Camera Support is a wide, stable, and ultra low-profile platform that allows you to set up a large tripod head, camera, and lens on both horizontal and vertical surfaces.. Measuring 5.3 x 7.8" and only 0.2" thick, the Pro Max Camera Support allows you to photograph or record with a camera that is elevated only slightly higher than the tripod …, AirPods Pro 2nd generation (USB‑C) ₹24900.00 §. Adaptive Audio¹⁶. Active Noise Cancellation and Transparency mode. Conversation Awareness¹⁶. Personalised Spatial Audio with dynamic head tracking ᴼ. Dust-, sweat- and water-resistant AirPods and charging case ᴼᴼᴼᴼ. MagSafe Charging Case (USB‑C) with speaker¹⁷ and lanyard ..., Makita XUX01M5PT 18V. The Makita cordless trimmer is a powerful weed eater that uses a multi-head system for its attachments. Makita’s couple shaft power heads use a lever system to attach to the base. After you slide the attachment in the coupler, you fasten a small lever to secure the add-on., The new iPhone 15 Pro Max Mobile Video Kit is an aluminum alloy cage that supports MagSafe charging and has multiple areas, namely 10 1/4″-20 threaded holds …, What really gives the iPhone 15 Pro Max an edge over the Samsung Galaxy S23 Ultra is iOS 17. It is still the best mobile platform around, with features like Standby …, Buggy voice assistant. The Cleer Enduro ANC isn't the only noise-cancelling AirPods Max alternative you can get for less than half of Apple's asking price. The JBL Live 660NC offers full ANC, a ..., We’ve got a retro series for the LS3 and the LS7, which is a direct bolt-on replacement for those applications, and then we go into the LSW-12-1, 12-3 and 12-4. Some of those heads will exceed 3,000 horsepower. Our best-selling cylinder head is the LSW-12-1. There’s probably close to 10 different port configurations that go into that ..., Find PROMAXX Performance Cylinder Heads 200cc Intake Runner Volume (cc) and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Final Day! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search , DACORM Massage Gun Deep Tissue Percussion Muscle Massage Gun for Athletes,Super Quiet Portable Electric Sport Massager,Handheld Deep Tissue Massager of Y8 Pro Max (Gray) Visit the DACORM Store 4.6 4.6 out of 5 stars 18,809 ratings, The crashes of the 737 Max could create a branding problem for Boeing that outlasts the technical issues. One of the greatest achievements of modern aviation is the relative ignorance of the passenger who steps onto the plane. Few who are n..., Series. Promaxx Performance continues to evolve with the Project X lineup and has raised the bar on the competition. There is NO AS CAST head on the market that can outflow these heads PERIOD! We have done our homework and produced what we believe is the best as cast head-on at an affordable price. , Find PROMAXX Performance Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing!, Cosworth CRF Pro Max Heads put out the power! Cosworth CRF Pro Max Heads put out the power! Cosworth ... nice dyno session this am on pala outdoor engine 2011 crf 250 pro level ama specs. All reactions: 3. 3 comments. Like. Comment. 3 comments. Andrew Humphrey., Find PROMAXX Performance Shocker Series Small Block Mopar Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! If you are a small block Mopar enthusiast, you know your choice for …, AirPods Pro 2nd generation (USB‑C) ₹24900.00 §. Adaptive Audio¹⁶. Active Noise Cancellation and Transparency mode. Conversation Awareness¹⁶. Personalised Spatial Audio with dynamic head tracking ᴼ. Dust-, sweat- and water-resistant AirPods and charging case ᴼᴼᴼᴼ. MagSafe Charging Case (USB‑C) with speaker¹⁷ and lanyard ..., The ProMaxx MAXX Series Small Block Ford Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Even the ''as cast'' heads utilize ultra-smooth new runner and chamber designs that produce ''CNC'd type'' flow numbers. While creating the 100% CNC Ported MAXX series, Many long hours on the flow ... , Key to performance. With a powerful Apple‑designed H1 chip in each cup, our custom acoustic design, and advanced software, AirPods Max use computational audio to create a breakthrough listening experience. By tapping into each chip’s 10 audio cores, computational audio helps block outside noise, adapts audio to the fit and seal of your ear ... , The LC9 came in GM trucks and SUVs in 2007-‘11 and made 315 horsepower right out of the box. It’s a Gen. 4 5.3L aluminum-block engine, so you’re getting the better intake manifold, connecting rods, and ECM. The engine also had 799 or 243 casting heads which are closely related to the LS6., Chad Speier. 1283 posts · Joined 2008. #7 · Feb 16, 2019. The 290 and 315cc are imported from Steven Sun. Check out Steven Sun on Facebook and see who else he supplies. The 320 and 360 are the same big square exhaust everyone else is offering. The 290 and 315 are extremely nice. Speier Racing Heads., Find PROMAXX Performance GM 6.5 Diesel Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance designed and developed these cylinder heads from the GM 6.5 diesel casting. They are cast iron direct bolt-on replacements for your 6.5L diesel engine. The assembled heads have straight intake …, New Sentinels Roster Peesh Sens 1.2 DPI 800 Res 1680×1050 Mouse: zowie s1 keyboard:TINA 60% board / Hako Violet Switches / enjoypbt sushi Japaneese keycaps / Custom Made! Mousepad :Logitech G640 Monitor :BenQ Xl2540 PC: NVIDIA 2080 I7 7700k 16gb ram. New Sentinels Roster Crust Sens 2.1 DPI 400 POL rate 500 Res 1680×1050 …, Buggy voice assistant. The Cleer Enduro ANC isn't the only noise-cancelling AirPods Max alternative you can get for less than half of Apple's asking price. The JBL Live 660NC offers full ANC, a ..., Maxx 180 SBF(Sold in Pairs) Maxx 180 SBF. (Sold in Pairs) $ 979.00 – $ 1,565.00. The SBF Maxx 180 is an as cast head that beats the competition. Don’t let the size fool you, flowing over 260 cfm, this head makes real power. It puts out up to 20 hp over the competition. Spring Options., Aran ' Sonic ' Groesbeek Bravado 46.5%. Stefan ' stfN ' Seier ALTERNATE aTTaX 46.5%. Nikhil ' NikkeZ ' Victor Ground Zero 46.5%. YuanZhang ' Attacker ' Sheng TYLOO 46.5%. Jacob ' Pimp ' Winneche Dignitas 46.4%. HLTV.org is the leading Counter-Strike site in the world, featuring news, demos, pictures, statistics, on-site coverage and much much more!, So in April this year I ordered from Skip White his BBC aluminum heads. They are Procomp heads. These things, as plenty of you know, are sold a lot of places and under a number of different names. Born and bred in the Good Ole US of A Peoples Republic of China. They are so cheap I thought it was worth the risk., Oct 15, 2018 · 75gmck25 · #9 · Oct 16, 2018. I looked at Promaxx heads, but finally bought the Blueprint H8002K heads, which are about the same price. I have standard dished pistons in a GM crate 350, so it limited the compression ratio I could achieve. I also have 4.10 gears, TH350 and stock 31" tires.