1970 Chevelle 496 11.07 @ 120mph

CPMotorworks 1970 Chevelle 496 with Powershot System. This was a half throttle launch in deference to the stock driveshaft and axles.This is a very mild engine setup, 750 Holley, RPM intake, OEM oval ports, flat tappet cam, 3500 stall and 3.31 rear gears,and the cars weighs 3800 lbs.

Category:

Autos & Vehicles

Tags:

• 1970
• chevelle
• ss
• 496
• bbc
• cpmotorworks
• cpmotorworks.com
• leah
• graves
• janesville
• wisconsin
• engine
• machine
• shop
• Pete
• Graves
• performance

[gnewma1]

I just stroked my 454 to a 496. Got a mild comp roller cam .5 lift and 228/232 duration at .5. Got a 2400 stall and 355 gears.  Air gap intake manifold and dart pro 1 oval port heads. Ran it for the first time this weekend and ran a 12.2. Pretty sure I could break into the 11's though. Just curious how big the shot and cam was to get you to the low 11's.

[cpmotors]

@gnewma1 The engine had a solid flat tapper cam- Comp XS274S 236/242 @ .050 on a 110 LSA, RPM Air Gap, OEM 781 iron heads, 10" TCI 3500, 3.31 gears and is 3800 lbs with my wife-(its her car) Shes runs 11.5's on motor alone-

The plate is just a Powershot=125 hp to go the 11.07 @ 120

[swasey1952]

@gnewma1 3.31 gears my ass! I had a 1970 Chevelle LS-6 new and it had a rock crusher m22 and lousy 3.31 gears, it was still in third gear at about 90 in the quarter stock. BB will not run with stock exhaust and high gears.

[cpmotors]

@swasey1952 I really hope your not replying to me with that comment about the gearing.....

[jakiewakey]

nice car and respectable times. Also, this thing sounds awsome, what mufflers are on the car?

[cpmotors]

The big RV Flowmasters,3.5" inlets, 3" tailpipes

[ajtoy454]

@swasey1952 you had !!! so leave it be...

[ramblnman24]

TAKE THAT RICER!!!!

[gnewma1]

How big of a shot were you running? What are the specs on the cam in this car?

[dsm525]

nice car. im also building a 496 for mine.