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Old 02-10-2024, 03:34 PM   #169
sfont66
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Join Date: Nov 2015
Location: Pine City MN
Posts: 356
Re: 72 C10 for my 25th wedding anniversary

I cut a cross section out of the clay and measured the clearance very close to 1/4”(.0.2475) for the intake valve and 3/16 (0.1840)for the exhaust valve. Plenty of room. I really didn’t think this cam was going to have issues, but with exhaust duration in the 240’s and aftermarket heads, I thought it would give me peace of mind to double check.

I washed off the rust inhibitor on the lifters with mineral spirits, and then gently blew them dry with compressed air. After that I soaked them in oil, I know most people say you shouldn’t, or don’t have to, but I wanted to make certain there wasn’t any trace of mineral spirits left inside the lifter cavities. After the oil bath I let the lifters drain, plugged them into the trays, applied assembly lube to the lifters and lifter bores, and placed the lifters and trays into the engine.
I gave the block deck and head a final wipe with lacquer thinner and a clean cloth, set a new gasket in place and lowered the head onto the block.
The ARP bolts called for a 30#, 60#,90# torque spec , in sequence the 10 larger bolts and 25# on the 5 smaller bolts.
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72 C10, Was a 350,M20, Brodix heads,Comp cam, Edelbrock intake&carb, Hedman hedders LWB.
Project is now a 5.3(L33) w/PRC stage 2.5 CNC ported 243heads, BTR RedHot cam,Holley Terminator X, T56 magnum. SWB, Boyd tank. 4.5/4 Drop http://67-72chevytrucks.com/vboard/s...My72c10project
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