[Fast68Chevy]

ok things are getting twisted around here,


these are hole sin head that are on engine that i dont need to tear apart just to fix two holes in,
the engine is fine otherwise.

the bolts are not gonna come out any other way, i will have to dril them out and tap and re thread them

all i simply need to know is what size and type of bit to use and what size tap for 3/8" coil or also for the 3/8" sleeves


yes, NAPA has a 3/8 coil kit but they want a small fortune for it and i coud probably get a sleeve kit for less than a coil kit and end up with lots better repair, i plan on keeping this engine, so.,,,,,

so for a 3/8 sleeve I'd go with a 1/2-13 or 7/16-16 bit and tap ??
thats not very definite... how can i find out for sure what i need ?? all i need is simple/accurate answer/info,,

im still at square one ? help ?


thanks.