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2 years in the making but finally getting somewhere, it’s taken a lot of money and waiting but man has it been a fun time! What do you guys think? Beauty How she started 3 years ago
That’s awesome, yours a crate or did you build it? Compression is 11:1, cam is 258-263 @.050 with 640 lift on a 109 lsa. Nothing too crazy, wanted a little vacuum and drive ability as this won’t be seeing much if any strip time.
Summit racing is where I got the valve covers but I’m actually sending them back tomorrow and going same Moroso valve cover but 3/4” taller to clear rocker girdle, mike Lewis has helped me the most and been a great help. Always answers questions and responds very quickly. If you’re buying parts and needing any machine work I highly recommend him. He balanced my rotating assy and did a great job.
Last edited by Muzzyzx7rr; Sep 7, 2020 at 11:31 PM.
That’s awesome, yours a crate or did you build it? Compression is 11:1, cam is 258-263 @.050 with 640 lift on a 109 lsa. Nothing too crazy, wanted a little vacuum and drive ability as this won’t be seeing much if any strip time.
It'll move out quite nicely!
Over camming a street engine is always a pain in the ***, better to be on the safe side. Sounds like you got a killer setup!
Took 3 yrs of saving for my wimpy 383! If you had Straub and Lewis do yours bet its an animal that will never come apart
How bout some specs? WOuld love a SR 496!!
I hope it doesnt come apart lol, Lewis balanced the rotating assy and set the heads up for the cam and straub did the cam but I put it together so 🤞.
specs are:
arp main studs
scat forged stroker crank
scat forged h beam rods w/arp2000 bolts
wiseco forged 21cc dome pistons
straub solid roller 258-263@.050 .640 lift on 109lsa
rollmaster timing kit with IWIS chain
AFR 290 full Cnc heads
edelbrock rpm Airgap manifold
pro systems venom vx billet main body carb
moroso billet high volume/pressure oil pump (using the brown spring so it really just has normal pressure)
holley billet hp mechanical fuel pump
msd billet distributor with tach drive
dougs 2-1/8” stainless polished long tube headers wit 4” sidepipes
Last edited by Muzzyzx7rr; Sep 8, 2020 at 10:29 AM.
Wow our engine builds are pretty close.
I’m at 10.4 cr, with a crane roller 234/248 @50, 610 lift and 112 lsa.
My cam comes in at 2,000 rpm and pulls through 6000 rpm.
I’m not sure if I’ll put mine on a dyno, because I’m not a numbers guy, but it should make great power mid range where I wanted it.
I wanted to go with a slightly bigger cam and a little more cr, but my builder suggested this combo for my driving and street use with pump gas.
I also went with a SST 5 speed with .82 5th gear and 3.08’s so I can cruise nice and easy down the highway.
I went with Silver Sport Transmission and their Tremec kit to swap over from my TH400.
Gary (GTR1999) built the rear end and I can’t wait to get it all installed.
I got the complete kit last year during one of their sales for about $5,200.00.
The kit includes all top quality components, everything you need even a new driveshaft and U-joints.
Check their website, because I believe they are having a sale right now.
Their tech services people and sales reps are awesome.
496's are fun. Mine is right at 10:1 compressions with Dr. J Airwolf (ported Edelbrock RPM) cylinder heads. Hydraulic roller at 240/245@.050 with ~.625 lift. Custom 3x2 EFI. Idles at 850 rpm. Pulls hard to 6200 (that is where the EFI starts dropping ignition pulses, cuts fuel at 6300).
Here is my rear wheel dyno chart. T-56 Magnum and Tom's 3.73 12-bolt rear. Upper lines are after the tune. Tuner said my sidepipes with STS baffles (centers capped) where restricting me above 5500 rpm. Could probably get another 50 hp up top but it would be much louder. Wife likes it as is.
Thanks. With the EFI, it will cruise comfortably down to ~1800 rpm on the highway. Very comfortable at 2200rpm and up. I ran both a stock Tripower setup and Mopar mechanical secondary Six-Pack carbs before going EFI. The carbs may have had more raw power (at least felt that way when the secondaries kicked in) but the drivability is so much better with the EFI.
