A heads up about Engine Quest heads

[67 gt]

On my first motor, I knurled the valve guides, but replaced one exhaust valve guide that was still too loose. The first day on the road the car died going about 40 MPH with an accompanying puff of white "smoke" billowing behind on the highway. Found a dropped exhaust valve, hole in piston, bent connecting rod, and split cylinder bore. Guess I didn't ream the new guide to provide enough valve stem clearance?

Wow exactly what happened to mine I should have got them checked but didn't, Great heads once they were done propley on a fresh short motor.

 

[magnummopar]

Hey Magnummopar, you say 1.97 valves fit the seat better, does that mean I can throw 1.97 or 1.94 valves in my heads without getting the seats re cut? I have a bare set of 1.92 EQ castings. Just want to clarify

We do a bit of work on them but it doesn't take much to put the valves in, like previously mentioned, we check the contact points for proper size to insure a perfect fit.