SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: ka0tyk on June 15, 2011, 05:05:49 PM

Title: need confirmation on bolt sizes/thread for bbc
Post by: ka0tyk on June 15, 2011, 05:05:49 PM

need some odds and ends for my new parts... figured id order the rest in SS allen as well so i can make my toolbox smaller.  do i have all the sizes right?

valve cover   1/4-20
exhaust/headers  3/8-16
bellhousing  3/8-16
water inlets  3/8-16
oil pan     1/4-20
intake manifold   3/8-16
distributor hold down 3/8-16
crank pulley 3/8-16
timing cover 1/4-20

Title: Re: need confirmation on bolt sizes/thread for bbc
Post by: obnoxious001 on June 15, 2011, 05:53:11 PM

Only two of your pan bolts will work at 1/4"-20, the ones into the timing cover.  The other 20 are going to be 5/16"- 18.  Other than that,, looks like your thread sizes are correct.

Title: Re: need confirmation on bolt sizes/thread for bbc
Post by: ka0tyk on June 16, 2011, 11:48:16 AM

ordered!  thanks a lot.