Name that engine ????
01-02-2009, 12:26 PM
#1
1st Gear
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Name that engine ????
Help, Help, Help !!! What do I have here. I have recently inherited a complete engine and heads and am having a REAL hard time id' ing it. This is the info: Block Cast # 3999289 production date May 18, 1971 E-18-71, Pad on front of engine has no vin but coded T0701 CRR. Heads are E-1-71 and E-4-71 with casting number 3964291.
Now, all the books say this engine was built in 1972-1979. How can that be? Nothing has been altered in any way. It is a 454 block with 4 bolt main caps. It has Hi Perf cast into the block and heads. If anyone has any idea what this REALLY is a e-mail would be greatly appreciated.
Is this a Corvette motor or what ? The books say this doesn't exist.
Thanks, and Happy New Year !!!
Now, all the books say this engine was built in 1972-1979. How can that be? Nothing has been altered in any way. It is a 454 block with 4 bolt main caps. It has Hi Perf cast into the block and heads. If anyone has any idea what this REALLY is a e-mail would be greatly appreciated.
Is this a Corvette motor or what ? The books say this doesn't exist.
Thanks, and Happy New Year !!!
01-02-2009, 12:42 PM
#3
Le Mans Master
T0701 CRR
T = Tonawanda Plant
0701 = July 1st
CRR = 1970 Chevelle 454/450 HP, LS-6/SHP, Special High Performance
From fellow member: Jeff Keryk, 10/06/08
From fellow member: 63mako, 10/07/08
T = Tonawanda Plant
0701 = July 1st
CRR = 1970 Chevelle 454/450 HP, LS-6/SHP, Special High Performance
From fellow member: Jeff Keryk, 10/06/08
I had a red 70 coupe that had the CRR (70 450 hp TH400) Chevelle motor. The steering was worn, and I couldn't get the brakes bled properly. It had Hedmans and turbos. It ran crappy until my mechanic brother replaced the throttle cable, I replaced the droopy timing set, and rebuilt the TH400. Then, this car was faaaaasst... I did not know that the motor was worth more than the car. I was looking for Vippers. 6 mpg or there abouts... I sold it for about 8 grand and bought my 68 427 Roadster. I never understood why that car was so fast.
The 70 chevelle LS6 was 11.25 to 1 compression with iron heads. Needs 100 plus octane fuel. The 450 HP rating was very conservative. Chevy rated these @ 450 HP @ 5600 RPM and they were detuned and ran iron manifolds and full exhaust. The HP rating was for insurance purposes. These pulled well past 6500. Close to 600 HP with headers. Built one 3 years ago.
Last edited by 71 Green 454; 01-02-2009 at 05:33 PM.
01-02-2009, 02:07 PM
#4
Drifting
I had a CRR in a 70 Corvette with a turbo 400 (which I rebuilt). My mechanic brother replaced the trhottle cable and dialed in the Holley. I replaced the droopy timing set. This car was dangerous. Just right for hunting Vipers. I think the engine was worth more than the car. Got 6 to 8 mpg if I drove carefully.
01-02-2009, 04:05 PM
#5
