496 bbc dyno numbers. I told him I HAD to have flow numbers.

496 bbc dyno numbers BluePrint Engines 496 c. Engine: GEN VI BBC 496 ci Machine work performed by RWR (Rick Waters Racing in Glendale Arizona). 68 to 1 Comp solid roller 263 @ . Nov 13, 2025 · Rather than base a set of heads on flow numbers, you would be much better looking at the horse power numbers they make, providing the dyno numbers are true. 1. he Jul 12, 2011 · if you don,t think use of the correct valve springs and rockers matters heres the dyno results on a 496 BBC chevy engine with a new set of valve springs and roller rockers, obviously if correctly selected,they can make a difference Dec 20, 2016 · One 582ci big-block, two days on the dyno, three sets of Brodix heads, and a whole lot of ideas for making power. Race gas is the only option as this engine will be chasing the quarter mile in a Monte Carlo. I told him I HAD to have flow numbers. Thanks to the converter the graph started after peak torque so I didn't get a good number. The "Cam King" very well could be right. The combo is 468 ci, 9. Apr 15, 2011 · looking to build a bbc. 50 on the intake and exhaust . 310 bore X 4. I've seen some awesome info on the 265cc afr heads from vortexpro. The engine was tested with 2 1/8 dyno headers and had 30* of timing Dr J's Pump Gas 496 4. It had a Lunati cam with 10 degrees of split. It's a 10. 9. 25 stroke 6. Apr 7, 2022 · We head over to Westech performance, home of Engine Masters, to check out dyno testing of a 496ci solid-roller pump-gas big-block Chevy. Specifications: . They can even do tricks to the engine on the dyno to make the numbers read higher than could ever be obtained in a real car. Nov 1, 2013 · A lot of people think that whatever the dyno says it has to be accurate most people don't know that a dyno operator can manipulate the numbers to read whatever they want. 4 cc dome pistons Brodix 298 oval port heads Crane solid roller cam 264/274@. Aug 1, 2015 · Do It Yourself, Boating on a Budget - 496 dyno results - Posting this for a friend. May 7, 2014 · Re: Pump gas 496 hyd roller build and dyno test by vortecpro » Wed May 07, 2014 1:17 pm 496blaze wrote: Mark, did you bush the lifter bores to correct geometry issues or was it to get the proper clearance? Maybe both. Probably buy bare castings to start with. With flow numbers that reached nearly 400 cfm, the Dart Pro 1s were another set of 800-hp heads in search of a motor. FULL DYNO RESULTS! WHAT MAKES A GOOD SUPERCHARGED BBC? - YouTube Jun 29, 2011 · What do you guys feel are good heads for a less than 7500 RPM 496. BLOWN 496 BIG BLOCK CHEVY STROKER TEST. any suggestions to improve. Don't need $3000 heads. 5:1 496 with 345cc Assault heads, a 262/270 . 714 lift comp cam, 1000cfm Holley and single plane. So could I get opinions on this. Feb 15, 2011 · I'm officially starting my build thread for my next BBC. Mar 12, 2016 · The above dyno test was a customers 496 built for his 1970 LS5 Chevelle that will never see a drag strip. I'm building a 496 right now and it's for a 71. Scat forged roatating assembly Mahle forged pistons Compression 10. roller cam and single plane intake manifold on pump gas. Wondering if the 290cc will be worth the money for a street car besides bragging Jan 28, 2023 · Looking for thoughts on my 496's recent dyno session. 98. 3/8 . 060-inch overbore with a 4. 310 X 4. Engine specs listed below. 7:1, 781 heads w/2. First up is the pic of the engine. 385 rod. Supposedly made 720hp on an engine dyno. Jun 8, 2022 · BBC 496 stroker build and DYNO RESULTS! Jump to Latest 17K views 16 replies 13 participants last post by Dan Orgill Sep 21, 2023 69huggerchvl Discussion starter Oct 21, 2024 · I have a 496 in a 3300lb (w/fat driver) Datsun Z that I don't think feels as strong as it should, just seeing if anyone has chassis dyno'd a similar combo. This is going to be a 496" pump gas BBC. just wondering if anyone has a combination that works well together. 5:1 Brodix race rite 270 ovals Comp hyd. 76 comp, comp 248/253 110, 106 solid roller, scorpion rocker arms, Scat 4340 crank, 6. 050 . 25-inch stroker crank. 26 CF) and our local dyno 1500 miles away outside of Houston Tx, close to Sea Level, VERY small correction factor of . i. After a little over a dozen pulls, we stopped at 737hp/639tq :hurray: with a very flat torque curve. They also installed a set of 2. 5 compression, Mahle piston on a 6. The AFR Enforcer 335 bbc rectangular port heads are perfect for 454, 496, 540 and 572 street/strip engines. Includes 30 month / 50,000 warranty & BPE Dyno Promise. 385" rods, vs the stock 6. Cam was a billet hyd roller 238/248/578/608/109 installed on a 105. Dyno was Superflow 902. These are what we now use on our 505 and 555 bbc engines. Thing should be a carnival ride if he can keep it hooked. 7:1 compression, almost always a hydraulic or solid roller cam and perhaps a tunnel ram intake or stack injection, maybe even super charged, etc. They produced 762 hp with our Comp 575 lift hyd. This dyno is at Owens Racing Engines in Pearland Tx. Using a cheap Gen-V 454 core from the junkyard, we built a Multi-Purpose 496 stroker. We use the Bravo heads on most all of our bbc engines builds all the way up to the 572 engine. We were very pleased. 385 rod SRP Pistons 11. May 1, 2024 · After adding the Weiand 871 to the 496 big block it is easy to see why the big blocks and blowers are so popular. The cam I sent him had a 26 degree split at . 714/. These are what we now use on our 505, 555 and 572 bbc engines. 13:1 compression, 2. 19-1. * DART Nov 16, 2006 · This week I was able to tune my new 496 on an engine dyno. 750" max lift cam, 1050 carb, 3000# big tire car?. i have checked out vortecpro. . The block had rust in the lifter bores, which would have left excessive clearances. Morel lifters. Typically I run my own engines as much as 1000 RPM over peak on the track. Pulled clean to 6500. 7 comp pro magnum rockers Jul 23, 2015 · The 496 BBC was the result of combining a . FULL DYNO RESULTS on this POWER ADDER BBC Stroker. who has built one, and would you care to share your engine combo and hp. 050 hyd roller, air gap intake, 20403 Moroso pan, 1000 HP 660 HP @ 6200 RPM, 660 TQ. Given that my first pass with the 496 (and original trans/converter) trapped at 129mph I was sure I would put 500 to the wheels. big block GM style stroker crate engine - longblock. There are so many 496 builds listed here. Feb 11, 2014 · The dyno numbers showed a textbook example of what is gained and what is lost as the cam timing is increased. 5 Jan 27, 2019 · Subscribed 940 59K views 6 years ago Mild Street / Strip 467 Big Block Chevy Dynomore BBC CHEVY 496/505 COMPLETE ENGINE HYDRAULIC ROLLER CAM 674 HP RUNS ON PUMP GAS. 083 wall moly pushrods BluePrint Engines 496 c. I was a little disappointed in the results as I expected about 25-30 more HP and torque. Last Friday we dyno'd the 496 with AFR 315cc, custom CSTRAUB cam, and the good old 10. 88 with no porting or very minor clean up. This engine is fully assembled from intake […] BB Chevy 496 Stroker Engine, Dart Block, Eagle Forged Crankshaft, Eagle H Beam Rods, SRP Pistons, Brodix Heads, Hydraulic Roller Cam, Brodix Intake, Dyno Tested Oct 29, 2025 · Rather than base a set of heads on flow numbers, you would be much better looking at the horse power numbers they make, providing the dyno numbers are true. Not wanting to skimp on quality, we contacted the stroker experts at Scat Enterprises for a solid rotating assembly. You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you! Jan 3, 2012 · 496 BBC Dyno results dyno results Jump to Latest 28K views 42 replies 13 participants last post by Punisher Jun 24, 2012 May 13, 2010 · For everyone that asked,,,, Pump gas 10. Oct 13, 2017 · C3 Tech/Performance - 496 AFR 265 Dyno Test - 496 4. Dec 7, 2024 · I'm thinking of putting together a pump gas 496BC and was wondering which AFR ovals to get? ive read alot of older posts and most were 265cc heads? this would be in a 3650lb 67 chevelle ? Jul 18, 2012 · For our street/strip 496 BBC, Dart supplied a set of its CNC-ported 335 heads. Drivetrain is a tko 500 w/ 30lb steel flywheel, center force dual friction clutch, 8. Kindly note the oddball pan which is for fitment into an early Chev. They produced 735 hp with our Comp 575 lift hyd. what et and mph has anyone run Aug 4, 2010 · Dyno Sheets 496 Iron Head BBC To all that might be interested in some dyno numbers, hand I will have to do these slowly as my server (and I) are speed challenged. New heads, new cam gen iv 289 4 bolt block Forged scat crank and rods Cp 24. Apr 21, 2013 · DYNOED 496 Stroker BBC made great numbers Jump to Latest 12K views 19 replies 15 participants last post by Indiansprings Apr 23, 2013 I FULL DYNO RESULTS-340 PROMAXX VS 345 AFR-CHEAP VS BRAND NAME? CHECK OUT THIS VIDEO COMPARING THE FULL CNC PROMAXX 340 BBC HEADS AGAINST THE AS-CAST AFR 345 HEADS. Mar 16, 2006 · Peak numbers were 596lbft at 3600 and 520hp @5000 but this is with some junky homemade headers (see gallery) I installed hooker super comps after dyno run so I figure for another 10-20hp. 37 deg total (verified) on 91 pump gas. I was just wondering who has the highest HP. Jan 30, 2020 · Hey guys this is my first post. 6 compression, 496, GM 049 heads, 238@. Roller 11-444-8 Rpm air gap Jul 8, 2011 · That being said 401 hp was the SAE corrected number so the horrible air shouldn't be affecting the numbers. Who is the Alfa dog? Dec 29, 2020 · wondering if anyone has actually dyno'd any of these cams with stock 781/049 heads 454-468 ci engine , same heads with 2. The Bravo 335 bbc rectangular port heads are perfect for 454, 496, 540 and 572 street/strip engines. Would have been nice to use the same pan as the controversial AFR oval port aluminum headed 496 OR one of the great big marine Aug 27, 2025 · The AFR Enforcer 335 bbc rectangular port heads are perfect for 454, 496, 540 and 572 street/strip engines. 7 rockers, airgap, Holley 850, 2" headers and 3" pipes. Up top, we now recorded 599 hp at 6,100 rpm, gaining in both output and usable rpm, however, the bump of 12 hp up top shaved 8 lb-ft from peak torque, and shifted the torque peak higher up the rev range. Part #: BP4967CTC Jun 20, 2023 · I had a friend that sent me a fellow years ago that had a 540 BBC dyno 540HP on the dynoThis was a 990 headed engine. 135" rod length and larger counter weights on the 6. The test was run in warm conditions, high 80’s in Houston Texas so humidity was around 70%. Part #: BP4967CT Jul 20, 2012 · Just got back from going to Colorado Springs picking up my Engine and watching it Dyno-thought I'd give my unbiased experience with Mark Jones and Vortecpro performance for anyone out there who is considering Mark, and show you my numbers- First off, Mark is a very busy guy, and had 20 Jun 6, 2023 · Watch to see just how to build a 496 cubic inch big block Chevrolet that makes real power with a roots blower bolted on top. Head companys fudge with those numbers just to sell product. Engine was dynoed using 91 octane fuel with 32 degrees total timing. 19 intakes and bow blend, 228/238 108 lsa Isky hyd roller, comp 1. The AFR heads received a little work, CCs were set at 112, spring pressure was set at 170/400. 385" combo make the whole deal easier to clearance and balance,Ive always preferred a tall deck 427 block over a production 454 block, the problem is both in initial cost and transporting it once you find one and have it purchased in most cases, if your Jun 12, 2010 · The only thing I can say blasttime is flow numbers and dyno numbers are all from a tool, one that can be manipulated. 5:1-13. this is for a 67 camaro, 4 speed (m20), 373 or 355 rear gear (havent decided yet) street car. featuring parts lists and dyno Feb 2, 2020 · 496 BB Chevrolet Race Build This little number produced 770 HP @ 6400 RPM and 670 LBS of torque. May 27, 2016 · Just got the new 468 tuned up on the dyno. looking for atleast mid 11 sec car. Using the right combination of parts, we were able to make Sep 27, 2008 · Well that's the story, I plan to rebuild it and go back to dyno and see what the engine can really do. 5 Straub rocker arms Brodix stud girdles I was shooting for 700 Jul 25, 2005 · Can you 496 guys post up any combo/dyno numbers? Jump to Latest 22K views 32 replies 22 participants last post by Bob West Jul 30, 2005 J May 17, 2023 · Re: BBC 496 dyno mule testing by mag2555 » Wed May 17, 2023 7:05 pm Give me average numbers if your talking peak in this first post . 5 psi) What better proof do you need that big blocks and boost make an awesome combination than these dyno results? Mar 10, 2009 · I have been slowing putting together a 496 and finally set it in the car tonight. If I'm going to spend $1600, give or take a couple hundred, is the money better spent on some promaxx 317 or getting the 781's worked over. 050" . 250, 10. Dyno Chart: 496 Big Block Stroker, NA vs Weiand 8-71 Blower (6. TQ. Jul 28, 2010 · Here is the Dyno Data and a pic on the AFR Oval Port heads on a 496 BBC. Anyone have actual dyno results of there 496 with 290cc heads. Mar 3, 2010 · I am trying to do a search and found it difficult. 300" intake valve, . Jul 19, 2014 · Just had my motor built for my 70 SS, feeling a lil disapointed after seeing the dyno. 385 I beam rods, Milodon 66 chevelle oil pan, M77 oil pump blue spring, ported RPM air gap intake Official Dyno report on our 496/505 engine with cam choice # 1 and a single plane intake, runs on pump gas. 734 lift 1. Mar 1, 2008 · Check out this 496 Chevy Big Block Engine get tested with Edelbrock Performer RPM Cylinder Heads and Dart Cylinder Heads other cylinder heads are TFS, Brodix, GM and Pushrod, Featured in Car Craft May 21, 2010 · The new AFR 290 CNC ported head was tested on the 496 today. Did I leave power on the table with this particular combination? If so. I'm sure we could have squeezed a few more ponies out of it above 6k, but I didn't see the point in beating on it for such small Mar 4, 2016 · Re: Promaxx 317 BBC head for 496 build by EthylCat » Fri Mar 04, 2016 9:11 pm [quote="Rosenbluth"]Thanks for the replies guys. Engine assembled by Beau (Borgie). Data is corrected. 5 mild hyd roller by Chris Straub engine by me :D Pay no attention to the BSFC numbers, my channel 2 flow meter is acting stupid they were in the mid 4's on two earlier pulls Here is the link to the heads from a while back Apr 23, 2021 · On Westech's Superflow 902 dyno the 496 big-block was filled with Lucas oil and plumbed to the dyno's Aeromotive fuel system. He got them. Car is a ’70, auto, 3. 714 lift 112lsa installed at 108. roller cam and single plane intake manifold on a 572 pump gas build. 674 hp with our new AFR/Bravo 335 heads is outstanding. 5:1 short block. include 14:1 compression, Brodix BB3X heads with an in house port and polish. We’re estimating approximately 650 hp in a 496 build with the same mid size cam. rated pump gas 496 BBC? I am wondering what a max effort 496, on the edge of streetability type engine is capable of these days. Mar 21, 2009 · IVE built at least a dozen 489-496 bbc strokers and the longer 6. Of course needs to be reliable. big block GM style stroker crate engine - dressed longblock with carburetor. :) Gen6 four bolt Jul 12, 2011 · first thing Im forced to point out is theres several completely different 496 BBC engine build links, contained in this and linked related threads most are not designed as racing engine, those would have 12. Specs. HP goal is ~740-760hp @ 6800-7100 RPM TQ goal is ~640-660hp @ 4700-4900 RPM Nov 11, 2010 · Hi All, KC asked me to post the results for his pump gas 496 with the AFR 265cc CNC chamber heads, Chris Straub hybrid solid roller, Victor Jr & Pro Systems SV1 Not too shabby for a set of poor little 265cc oval heads RIGHT OUT OF THE BOX, ABSOLUTELY NO EXTRA WORK I did not dyno this it was Oct 7, 2012 · Re: Good 496 BBC pump gas combo by vortecpro » Mon Oct 08, 2012 12:51 pm blwilliams wrote: Looking to build a pump gas street strip 496. 42 gears Sep 17, 2008 · For our street/strip 496 BBC, Dart supplied a set of its CNC-ported 335 heads. Nov 20, 2009 · Today we performed a comprehensive dyno comparison between the dyno numbers I received from Mark Jones on his dyno in Colorado at 6300' (1. Dec 2, 2012 · I have been slowing putting together a 496 and finally set it in the car tonight. Awesome power curve660 @ 6000 (662hp @ 6100) and almost 660 tq @ 4400. Nov 30, 2023 · Just finished up my updated motor. Someone had ported the intakes only and left the exhaust. Should be a really fun engine. Mar 8, 2021 · Just finished up a mild pump gas 496 for a customer in Ohio for his street truck project. 1/8 mile. 25-inch long-tube headers to help the Official Dyno report on our 496/505 engine with cam choice # 1 and a single plane intake, runs on pump gas. 060 over 289 casting block, 10. Anyone think this has more in it or are the heads restricting it. This will be an on going thread showing progression from beginning to end results on the engine dyno.