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Old 01-21-2020, 10:33 AM   #15
Fordestes
Senior Member
 
Join Date: May 2010
Posts: 886
Default Re: Looking for exhaust port layout drawing

I take some grade 5 bolts cut the thread part off , grind the flat cut off end to a point , screw the bolt ends in the block put some tool makers ink, magic marker ,momma's cake coloring etc. on the ground pointed ends protruding from the block, grabbed a 1x4 and a mallet tapped the board against the pointed studs then drill the 1x4 as a template and transfer punch a 1/2'' plate for the block mounting flange , I take a 2'' piece of cold rolled cut to 45 degrees weld to the 1/2'' plate to fit my engine stand head. I keep a selection of different pointed bolts used to transfer bolt patterns ,I also set some threaded cut off bolts up in a lathe then drill through the center and use as a starting guide for center drilling bolts that are broken off below the surface such as head bolts.

Last edited by Fordestes; 01-21-2020 at 11:01 AM.
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