I did find that formula, gave same for first ring, bigger for second. I asked the machine shop, he said 0.003 per inches of bore. Which for me brings the gap to .0135 -> '014, them he said add '001 to compensate for unleaded fuel
. Second gap 18. He said ill be just fine with 14/16. The hell with this crap anyway, everyone has it's own little recipe, they are all different.
Heck I had the worst experience with that engine.
First machine shop specializes in circle track 2.3s, so I brought my 2.3 to him. He blueprinted aster boring 30 over, ordered the short block kit for me to assemble it. Since it was blue printed I didn't bother checking bore/piston sizes, ring gaps ... Plastiguaged bearing clearances.
... Off course ... Big mistake, but man if you can't trust professionals anymore
Had 120 compression, 12ish man pressure, 40% blowby to the crankcase. So I open the thing again, measure the bore and it's 40 over ... With 30 pistons.
Bring the block to machine shop #2, have it bored to 60 over because cylinders are scared... Plus order 60 piston kit ... Yay. They bore it, I bring the block home measure like '053 over. So:huh so I bring it to machine shop #3 to get it checked, the guy measures 40 over! Go back to machine #2, they measure 53 over, show obvious embarassment, and bore it right to 60 over this time.
Meanwhile I ordered a set of complete heads from machine shop #4, and they are leaking. Turns out they reused the same valves with an odd guide. Had to bring them back to get them done right.
My 72 Dodge, I bring it to an ex-Dodge dealership mechanic from the 70s, who now owns his shop for the last 30 years, and is famous for drag racing. I ask him to adjust my valve lash, and his answer is 'u don't need to, they are hydrolic lifters they self adjust'.
Got a dual exhaust installed by a muffler shop, and as I roll out I cannot shift gears. Ko look under and the guy didn't put the safety pin back into the gear selection linkage ... Which he has the nerve to say ' I didn't touch that'. Turns out that the rear defroster is not working either. On my dodge it's an electric fan that takes hot air from around the muffler, but since the muffler got relocated, he just removed and junk the whole freacking system.
Hi mean REALLY?! Does anyone freacking care of what they do anymore? All those 6 places are owned/operated by caucasians, that sure talk the talk and pride on the ' made in America'. So called specialists highly recommended by local racers all of them ... Clowns.