Vettepilot
OBS Enthusiast
Hi guys,
Thanks to the price of fuel, my plans/goals are changing...
I am working on culminating my multi-year effort at owning a big block C4, and putting a nice 454 in my '87 Vette. Cool.
Also, I am fixing up a 1994 GMC 4x4 pickup. That too was going to get a (very mild) 454, but with the fuel situation, I've decided to rebuild the Vette TPI motor, and put it in the pickup. I will use the stock TPI, rebuild the aluminum heads, new rings/bearings, and install it with long tube headers in the pickup.
I'm guessing some gains could be had over the 35 year old TPI smog cam though. I'm looking hard at this one:
Note that I would use stock rockers, so lift would be more around .515 than Comp's 1.6 rocker stated .550 lift.
Torque and gas mileage the goal on this one. What say you all??
Ah, one more thing on that subject. In such a mild, 5000 rpm max build such as this, do you think the header upgrade is worth it, or just use the Vette "wanna be" headers???
Lastly: Back to possibly going with a big block. With 9.5:1 compression, a super mild cam, headers and well tuned fuel injection, I wonder what mileage a 454 would get in a half ton 4x4 pickup with overdrive??? If it would get 16, and the small block say 18, I'd probably go with the big block. That monster torque is SO cool!!
Vettepilot
Thanks to the price of fuel, my plans/goals are changing...
I am working on culminating my multi-year effort at owning a big block C4, and putting a nice 454 in my '87 Vette. Cool.
Also, I am fixing up a 1994 GMC 4x4 pickup. That too was going to get a (very mild) 454, but with the fuel situation, I've decided to rebuild the Vette TPI motor, and put it in the pickup. I will use the stock TPI, rebuild the aluminum heads, new rings/bearings, and install it with long tube headers in the pickup.
I'm guessing some gains could be had over the 35 year old TPI smog cam though. I'm looking hard at this one:
Note that I would use stock rockers, so lift would be more around .515 than Comp's 1.6 rocker stated .550 lift.
Torque and gas mileage the goal on this one. What say you all??
Ah, one more thing on that subject. In such a mild, 5000 rpm max build such as this, do you think the header upgrade is worth it, or just use the Vette "wanna be" headers???
Lastly: Back to possibly going with a big block. With 9.5:1 compression, a super mild cam, headers and well tuned fuel injection, I wonder what mileage a 454 would get in a half ton 4x4 pickup with overdrive??? If it would get 16, and the small block say 18, I'd probably go with the big block. That monster torque is SO cool!!
Vettepilot
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