Blown 421 sbc Make: GMC: Model: Sierra 1500: SubModel: C1500 2dr Standard Cab LB Pickup Truck 2-Door: Re: Blown sbc, so many questions Post by miniv8 » Tue Nov 12, 2024 7:44 pm The AN fitting above the timing cover goes into the front end of the main oil channel, this channel carries oil to the cam bearings and crank bearings, and likely reaches the lifter oil channels at the back of the engine. LS1 Engines. 155 bore Callie's 3. I am wanting to build a 18 degree headed engine. Sort by Oldest first Oldest first Newest first Most reactions. 050 . I am building a 421 that will have an 8-71 blower on top. The second picture further down in the add shows it with the optional dual plane intake. Proper Timing For A Blown Sbc. 51087 posts · Joined 2012 Add to quote; Only show this user 421 or 427 sbc rotating assembly in a 400 gm passenger block. 050 is The Smeding Performance 572" Blown, for the guy that wants to be King Kong of the street, it is the biggest and baddest engine we produce. RUNS ON PUMP GAS. 155 bore with a 3. That is . 5 and 248/250 duration @ . Moderator: Team. My goal is to run 8. 006 . 5-1. Maybe they need some better glue . 875 stroke) 95% street/strip combo, pump gas. Ive also been looking at the 3. Jump to Latest Auto Shack Transmissions, I haven't broken that tranny YET!! (724-840-6933) JK Custom Fabrication, Nice welds on a great Roll Cage (724-809-4264) Save Share Reply Quote Like. I plan on using a Dart shp block. 70@106 125 shot-11. 421 sbc cam and combo help. 0 HYDRAULIC ROLLER CAM 421 ENGINE 550 HP STREET ROD SETUP. steel body, LOOK!!! Item №151225. General engine tech -- Drag Racing to Circle Track. FORGED WISECO SBC 421 EFI Blown Alcohol. SBC 421 EFI Blown Alcohol. The engine will be set up for a "tough" street/strip car (more street). I’ve read that rods and cam are a tight squeeze with this combo so Dyno said it made 527 ft lbs of torque at 4800 rpms and 590 hp at 6800 rpms. If you love the look of a polished 8-71 blower and Ok im building a SBC 421 with a 8-71 I have the choice of using 64cc or 72 cc If i use 64 cc heads i will have 9. 8 1. 5 Hoosiers For sale- complete Procharger blow thru setup. Does anyone know if this crank will slide in and be fine with Went do the dyno yesterday and i am pleased with the results. 75" stroke)for what your trying to accomplish Id talk to CROWER, LUNATI and HERBERT cams How to Build a 421 SBC ? I know $3000 wont get me to those power levels and Im sorry I wasnt specific enough, Im in school trying to sneak out these posts. Lobe seperation is 107 . ironman New Member Posts: 31 Joined: Tue Jun 24, 2008 4:32 pm Location: Cam recommendation help for 421 SBC. 600 lift, cut on 108 L/S. Custom Sheetmetal tunnel ram intake for single 4500. Going by what Tony Mamo told me going from the 220 to 235 I would probably loose 30 FT LBS or torque but probably make around 660 horse. Pictured below is our turn key engine with the single plane intake. This engine is fully assembled from intake to oil pan. Is there a better head for this application? Even though it’s a GM LS world, the Gen 1 small block Chevy remains a popular choice for many builders. 4. Original steel bodied 1927 Model T. Profiler American X heads that are cnc'd by profiler. Only dynoed the 421 with the 220 runner AFR's 1927 Ford Model T, Pro Street, Blown 421 SBC, Chopped, orig. hotstang3 Discussion starter. The Mustang is looking INCREDIBLE thanks to JaxWax and Zach Copus with Tidy Rides in Columbus! But jus 421 SBC. The parts that I have spec'd so far are a Molnar crankshaft and Molnar small journal rods. 235 cfm. 98@149. 155 or 3. We also build roots blown engines for street and drag applications. 0 rods, Mahle pistons, Same cam 238/242 on 108 Lobe sep . 875 Stroke. 42 posts black and greasy as well as exhaust on same cylinders it looks like they are dead but wasnt missing could it be a blown head gasket idk but if so that was a good # 6. 71 w/ 64 cc chambers Custom hydraulic roller . 570 ex lift with 1. Description: 1927 Ford Model T. Package includes: -Procharger F1 head unit with billet impeller Cant help but wonder if a blown 421 could get me a more stout time than what I have with better driveability? Like what I have but its never enough. Whether you’re a seasoned gearhead or just Since this is a street/strip/autocross car (90% street), light load (0-4psi boost) cruising reliability and gas mileage are both concerns. Jaber Racing&Restorations 1970 Fathom Blue Convertible factory It’s been an incredible week of both highs and lows. 406 SBC M21 3. 15 degree high performance Chevy style head engine hot off the 850+HP 465 Cubic Inch / 23° Heads / SBC CHEVY TURN KEY STAGE 4. 050 on the intake side and 260 on the exhaust side, . 040 over and a 3. 60 and lots of work. DART SHP BLOCK WITH SPLAYED MAIN CAPS. We offer street kits with pump gas pistons to wild fully forged rotating assembly kits to meet your racing 30 ft*lbs on a 421 SBC ? Do you have a dyno, or dyno tested those heads? That head size and area would seem kind of small on a 427 BBC to me. 8210 posts · Spent Friday on the dyno testing 421 pump gas build for a customer, He was looking for a 600 horse pump gas build and we achieved our goals with this build. ~10:1 compression and some sort of roller cam for my 3400ish pound car. Small Block Chevy, Cam recommendation help for 421 SBC. 670 range. 605 in . Clarke has T&D shaft rockers in it as well, and the engine has a bit of nitrous, which was untested when we spoke with Brian. Heads are afr 235 milled to 62 Re: Quench on Street/Strip 421" SBC Centri Blower Motor Post by cjperformance » Thu Jan 27, 2011 9:10 am In a boosted (turbo-S/C) application, less quench 'area' or more quench 'clearance' translate into more of the chamber being exposed for heat exchange 'out' of the cyl charge near the end of the compression stroke and prior to ignition to SBC 421 or 427. I plan to run E85 with boost levels Original steel bodied 1927 Model T. We also do LS1 engines of all sizes and for all The small block Chevy casting numbers will tell you exactly what you have, as externally, it is difficult to tell whether you’re looking at a two-bolt 307 small block Chevy or an SBC 350 4-bolt main engine. 0ls 150 shot 10. I’ve been missing my old Malibu something terrible. I like the AFR 195cc street CNC heads for up to 6000rpm I want a engine bigger than a 400sbc, but not as heavy machined as the 421 CI. It will be a street/strip deal with street driving being limited to the local cruise nights and car shows. 1986 GMC Squarebody Longbed with a Supercharged Blown SBC Chevy 421 Stroker. The 421 cid small block Chevy also features a custom COMP Cams camshaft with a different profile to help the ramp speeds both in opening and closing. Jump to Latest 13K views 7 replies 4 participants last post by hotstang3 Jul 12, 2005. in. The engine consists of the following: forged 4340 Spent Friday on the dyno testing 421 pump gas build for a customer, He was looking for a 600 horse pump gas build and we achieved I'm leaning towards a 3. Blown Big Blocks. FORGED WISECO PISTONS, MANLEY 3. 875 Forged 4340 Steel Crankshaft, Eagle 6. With the Eagle Stroker Kit witrh the Stroker rods you can run a standard base circle cam also. The 2 bolt vs 4 bolt Sbc 817 casting decked at zero Eagle 3. . Discussion in 'The Hokey Ass Message Board' started by TB3, Feb 9, 2012. ,Yes Joe I know it's a cam for girls. Shafiroff Racing Delivering Quality, Performance and Reliability for Over 50 Years! Original steel bodied 1927 Model T. So I think I found my happy medium. 08/1. I cannot wait to hear it run again! Only THIS TIME, I’ve built an engine that pushes the limits of the SBC 415 421 Rotating Assembly; CNC-Motorsports offers the best selection of Small Block Chevy 415-421 rotating assembly kits. AFR ENFORCER 200cc ALUMINUM HEADS. Video. Home. 50 , 305/309 duration @ . Cam is a comp cams parts # 12-966-9 gross lift is 630/630 duration @ . Reels. Live. 88@123 6. with 68cc chambers. 00 Stroke Here you go Small Block Chevy Racing Engines fans! Introducing our 434 cu. 8 stroke aftermarket crank. 875 STROKE CRANK, AND 6. Save Share Reply Quote Like. 05 comp ratio if i use 72 cc heads i will have 8. Thanks for reply. compared to the 600hp N/A engine. 48 comp ratio its for 100 % Drag (Nostalgia drag racing) . 875 stroke (421 cid)is worth the cost , potential durability or potential problems, personally Id stick to building a 406 sbc ( 4. SB Chevy 415/421 Stroker, Dart SHP Engine Block, Eagle 3. 660-. 5:1 Hollow Dome Pistons Gas Ported, Fully Machined, Balanced, Short Block Assembled Dave, street driven or not, I have just had a set of custom Diamond pistons made for a blown alcohol 421 sbc, and am in the process of getting a set for a Pro-charged bbc. H. We’re going to show you how to build a 422 cubic inch stroker small I think the obvious answer is, the 700hp blown engine will likely need less valvetrain maintenance, less exotic parts, etc. Narrowed Currie 9" rear with 488 gears. The longer stroke will alway make more power than the shorter one. Hyd. Page 1 of 3 1 2 3 Next > Joined: Aug 16, 2011 The 400 had a blown head gasket so it will have to be rebuilt any how so I figure if I am going to do it once why not do it the best way. steel body, LOOK!!! Price: - Item location: Port Saint Lucie, Florida, United States. The build up is a pump gas 421 small block chevy with off the shelf cnc 227cc brodix track 1's and a small solid If you do not have the 421 crank, get a 434 crank instead. 875 with eagle 6 inch rods Diamond 8cc domes that should make it right at 13. 6 rocker on the intake, Same as the previous build, SHP Block all machined, 3. FULLY Original steel bodied 1927 Model T. 875 stroke) using a Dart Little M. 5 to 1. A “rat snout” isn’t always necessary but Hardcore took the added precaution of pair of blown 421's I’m looking to build a 414 421 sbc (3. I have tested 421 and 434 engines that were Building a high-performance 421 cubic inch small-block Chevrolet (SBC) engine that produces 700 horsepower is no small feat. To the builders here, any input, possible combos? 355 sbc-12. I’m looking for any advice on the combination of parts I should use. 423 - 427 - 434 "Pro Sportsman" SBC / 4. Narrowed Currie 9" Shafiroff Small Block Chevy - Complete Engines and Short Blocks. 875 stroke. Jump to Latest Grandma fresh GP,3700 pds,Pump Gas SBC, 8. 6 posts · Joined 2005 Add to quote; Only show this user #1 · Jul 7, Local racer 3600lb chevelle 421 SBC AFR 220 runs 6. Post by ironman » Tue Jun 24, 2008 4:44 pm. Drag Race Short Blocks - SBC: 427 Econo Series Drag Race Short Block: $6495: 406, 421 or 434 Sportsman Series Drag Race Short Block: $6995: Drag Race Engines Econo Series - SBC CHEVY STAGE 4. 875 crank, 6 inch rods. 875 stroke crank I did use the Callies Compstar 6. 1934 fiberglass fenders. 155 Bore X 4. 30's footbrake cam 271/279 @. RUNS ON PREMIUM PUMP GAS. Calibration Engineer Lets see what I can do with a 421" SBC T-ram. This 825HP 421 small block chevy is ready to RIPPP!!! In this episode, we put the final touches on the dragster, and fire up the new 421 sbc engine build! Ch Blown small-blocks have a sour reputation for spinning the harmonic dampers off the crank. 04 Overbore and that 3. 68 cc chambers. 1927 Ford Model T, Pro Street, Blown 421 SBC, Chopped, orig. 0 SCAT RODS. Bigtruckdrivah. Holley 1050 dominator set up for race gas. roller cam with 255 at . 421 cui. 0 H Beam Stroker Connecting Rods, JE 14. Shows My current plan is a 421 sbc (4. 85@112 388 sbc- 11. The lift is in the . Pontiac 867 casting 23 degree sbc heads with 2. 31 12 bolt "I would rather have Another great day on the dyno, 421 the only difference from the last 421 is I used the AFR heads 1094-716 and I used a 1. 12 posts • Page 1 of 1. Known as the tall T. Jump to Latest I built a 422 sbc using a stock block. I don't think going with a larger bore than 4. 57@125 '72 Greenbrier Wagon: 454, 700R4, 12 bolt Specs Dart shp block 350 mains 4. Vehicle Description. 8 stroke in a 400, I found it would put me close to 415 CI, Which I would be more that happy with. Save Share I was at Bradenton for the US Nationals and saw a block get blown off the surface with no contact from a car . 50 in the 1/4 In a 383 or 421 sbc. trmnatr. 875 forged crank & forged hbeams,forged je pistons 10. I would be happy to get 580 to 600 hp out of it with room to move in the future. 66@114 100 shot -10. I know what is "best" depends on preference of a person. '71 Z28 street strip car Pump gas All motor SBC 427 3308 lbs-29x10. 1 2. 155 bore x 3. With a . Small Block Chevy, Lunati crank and 6" rods. Full custom built chassis, adjustable four link, coil overs. This mild 509 big block Chevy pictured to the right makes 1000+ hp in race gas form. 40 in the 1/8 with 2 pistons not working and plugs do get replaced If you're going to build a big SBC get soem 18 or 14* heads that flow 345+ otherwise save your $$ and put it somewhere else in the car. Compression is 10. 421 etc with long rods and long strokes I feel the 3mm and 1/8" oil ring is a great choice so we dont have to use oil ring supports but really that is not a bad thing, so 421 dyno results. 24 60 foot RTCTTFMF. Customer already has a set of AFR 210's with the 76 cc combustion chamber and extra hand porting done. This combo makes over 800 hp to the wheels on a mild 421 inch small block and is ready to bolt on and go. Now its chopped 4 1/2 inches. czpxpfbrwvewyfwkdpnnfornxfobqhvbjakbkuodlaytkdztvjeyskynmofvkmhyhoqizzuhnuoq