Thread: Original specs
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03-24-2004 01:32 PM #1
Original specs
Where can I find original specs for a GM vehicle as it came from the factory? Specifically the 1988 GMC Jimmy Sierra 5.7. I looked up the casting numbers but can't find anyplace with complete orginal specs. I also can't find the cc # for the heads. Casting number 14102193 just shows up as 86-88 350 heads 1.94 1.5001. Is this a 76cc head? Thanks for the assist. ---Rich
BTW if you see this Tech, awsome explaination of compression. I totally got it after reading your post.
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03-25-2004 10:12 AM #2
Thanks for the effort. It looks like I might have to try the *GASP!* Burette method. 64cc vs 76cc heads could make quite a compression difference. (I know 'cause I can calculate it now)
Thank you Roger. .
Another little bird