Using any type of sealant or surface prep on head gaskets depends entirely on the type of gasket used. Most go dry these days, FYI.
Ring Gaps - Follow the ring manufacturer's recommendations, and check for any notes that came with the pistons.
Most rod bearings for Pontiacs are now chamfered on both sides.
Here's the one thread I recall, Chiphead made a good post:
http://forums.maxperformanceinc.com/...+assembly+tips
Now I exclusively use assembly lube during assembly. Not sure if I commented on cleaning cyl walls with WD-40 or not. Trans fluid works too. Floating pins get oil. Gasket surfaces get wiped with thinner or acetone prior to assembly. I do the same for block and rods prior to inserting bearings. Use lint-free rags. Anti-seize on timing cover studs.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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