aluminum head leaks

[Rick Kirchner]

The Pinto aluminum head has the bottom exhaust manifold bolt holes go all the way to the head studs. So oil comes out through the threads.

Ive used permatex anaerobic sealant with some success, just wondering if others have a method that works - teflon tape? Some other goo?

I might give Quicksilver a call if nobody has an answer.

[BeerBudgetRacing]

Or call Doug Learned - he designed them.

[Rick Kirchner]

Or call Doug Learned - he designed them.

I have. doug designed them but never was a user. Another difficult area is access to four of the lash adjusters.

[DaveW]

The Pinto aluminum head has the bottom exhaust manifold bolt holes go all the way to the head studs. So oil comes out through the threads.

Ive used permatex anaerobic sealant with some success, just wondering if others have a method that works - teflon tape? Some other goo?

I might give Quicksilver a call if nobody has an answer.

May be dumb questions/suggestions, but how deep are the exhaust manifold holes in question? If they're deep enough, you could clean the manifold holes and then insert aluminum threaded plugs (with screwdriver slots to screw them in) with sealant and run them in until they just contact the head bolts. Or you could use sealant on the head bolts when you install them. That way you'd avoid having to seal the manifold bolts each time they're R&R'd.