Ayone know the length of SB engine bolts?

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robertodonnell

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I want to go to my local parts supplier and grab new stainless bolts for the inlet manifold and water pump/timing cover. Can anyone give me the length of the bolts?

I'd measure mine, but they've gone missing during the build.

Thanks in advance, Cheers,

Robert
 
You can order entire (or just the water pump, etc) from arp through summit racing.
 
robertodonnell said:
True, I can. But I live in Australia, and would like to get them locally to avoid a one off freight cost, not to mention that I want them now!
Click to expand...

stick a small screwdriver in the hole, hold the depth w/ your thumbnail, measure and subtract 1/8 inch( bottom of bolt hole ain`t flat)
get bolts that are as close to that as poss., I`d rather they be full length as long as they don`t bottom out.
no guess work!
 

Went to hardware store and got loads of stainless allen bolts for like 10 bucks total.
Here you go:

oil pan
5/16"{18}x 3/4" amount needed 18

valve covers
1/4"{20}x3/4" amount needed 10 (cast AL, get 1" studs and nuts)

fuel pump
3/8"{16}x1 1/2" amount needed 2

thermostat housing
3/8"{16}x1" amount needed 2

intake manilofld
3/8"{16}x1 1/2" amount needed 12

water pump & timming cover as a combo-set
3/8"{16}x5" amount needed 4
3/8"{16}x3 3/4" amount needed 3
3/8"{16}x1" amount needed 3
3/8"{16}x2" amount needed 1

distibuter hold down
5/16{18}x 3/4" amount needed 1

crank bolt
3/4"{16}X 2.5" amount needed 1 (fluiddamper or aftermarket thick CAT, up to 3.5")
 
Got it off Moparts...I only share the wealth...Water pump bolts are hit or miss, use as a guideline but the old straw in the hole is a better indicator if you got an aftermarket pump. Dont let an open hole into the block or timing chain cover fool you into a longer size, feel for the base of the threads and start your measurement from there.
 
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