The last one the passenger side is stripped, and the exhaust leak is about to drive me insane. I need to know the right size so I can tap the hole and put a helicoil in its place.

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82 Camaro:
350, Erson cam, ported heads, Crane Hi-6 ignition, Accel supercoil, Comp Cams 1.6:1 rocker arms, TH350 tranny with 2500 stall.
SLP 1 3/4" headers

 

3/8 IIRC


But im pretty sure, Almost everything on the SBC is 3/8 or 5/16


Ahh ****, that may be A lie, Could be 7/16

Anyway, there are big holes and small holes, the Small ones are 5/16, and the big ones are I think, 7/16. 3/8 is pretty big now that I think about it.

Either way, Sinc eyour drilling and tapping and helicoiling anyway, Use whatever the hell fits




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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

3/8-16NC

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

Thanks guys.