bolt list
I copied and saved this a while back, courtesy of 340SIX. Hope it helps.
Small Block bolt sizes
oil pan
5/16"{18}x 3/4" amount needed 18
valve covers
1/4"{20}x3/4" amount needed 10
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
Don't forget the washers to go with the bolts.
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info provided by 340SIX