Just some general GM 847 ???'s
Thread Starter
Registered User
Joined: Apr 2003
Posts: 254
From: Forest, VA
Just some general GM 847 ???'s
I thinking about doing a rebuild and heads and cam over the winter early springish. Anyway I wanna go with the GM 847. What would be the best options as far as heads? Get my stock LT1 heads done or a set of aftermarket heads. I'd rather not go for aftermarket heads if I can make good power with work LT1 heads.
Another question. I've seen that with the 847 you need to spin it up to about 6500 rpm or so. Will the stock LT1 crank shaft handle that on a pretty consistant basis or should I look at a Lunati crank or other crank of some sort?
Well any informantion is appreciated and anything else anybody would like to let me know about all this will be appreciated too.
Another question. I've seen that with the 847 you need to spin it up to about 6500 rpm or so. Will the stock LT1 crank shaft handle that on a pretty consistant basis or should I look at a Lunati crank or other crank of some sort?
Well any informantion is appreciated and anything else anybody would like to let me know about all this will be appreciated too.
Registered User
Joined: Mar 2002
Posts: 3,245
From: Ocala, Florida
Re: Just some general GM 847 ???'s
If you are doing heads, just get a cam thats matched to those heads. And I'm reving to 6500 on a heads/cam/150 shot car on the stock bottom end and it hasn't blown up yet *knocking on wood*.
Registered User
Joined: Jun 2001
Posts: 1,456
From: WaTaUgA, Tx
Re: Just some general GM 847 ???'s
I thinking about doing a rebuild and heads and cam over the winter early springish. Anyway I wanna go with the GM 847. What would be the best options as far as heads? Get my stock LT1 heads done or a set of aftermarket heads. I'd rather not go for aftermarket heads if I can make good power with work LT1 heads.
Another question. I've seen that with the 847 you need to spin it up to about 6500 rpm or so. Will the stock LT1 crank shaft handle that on a pretty consistant basis or should I look at a Lunati crank or other crank of some sort?
Well any informantion is appreciated and anything else anybody would like to let me know about all this will be appreciated too.
Another question. I've seen that with the 847 you need to spin it up to about 6500 rpm or so. Will the stock LT1 crank shaft handle that on a pretty consistant basis or should I look at a Lunati crank or other crank of some sort?
Well any informantion is appreciated and anything else anybody would like to let me know about all this will be appreciated too.
Good luck and enjoy!
Steve
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