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Old 04-09-2015, 08:20 AM   #18
68 TT
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Join Date: Jul 2009
Location: Spokane, WA
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Re: Low Vacuum? With good compression?

Quote:
Originally Posted by MagmaJct View Post
I'm going to schedule exploratory surgery, probably within the next couple weeks to inspect the timing gears/chain. Since enaberif's experience was shared, I've been searching past posts. Looks like there's an HD option where it's a double sprocket/chain. Does anyone know if this will still fit in the stock cover?
A double roller timing chain fits under the stock cover and clears most blocks. Some older ones do need a little clearance work behind the upper gear for proper chain clearance.

I use them on everything I rebuild. Well worth the small amount of extra cost.
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69 C10 shortbed stepside 400 small block - built like what a super sport truck could have been https://67-72chevytrucks.com/vboard/...d.php?t=484426
69 K20 lwb TBI 350 4L60E NP208 14-bolt Dana-44 w/disc
68 Camaro SS / RS 500hp 439 inch roller cam big block 4L80E
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