408 stroker build sheets

DJVCUDA said

I'm in the middle of building a small block stroker - I have a stock set of Eddy heads I was going to put on there -

The short story is that the guides needed to be resized, the intake valves needed to be re-ground ( 4 were out of round by over 1.5 thou) and the exhaust were a little better.

THere was also shavings abound in the water passages.

Could I have bolted them on? Yes

will it run better now that I spent 150 bux to have them gone through? YES!

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It might keep on running also. All it takes is 1 valve to stick open and not close fast and then the piston strikes it and kaboom, there goes the engine. Never just bolt on a set of Eddy heads out of the box, never. If you drive the car long and hard enough something bad is likely to happen.

Engine builders know all about those sticking valve guilds, its not the 7,000 rpm that did the engine in, more likely it was a valve guild that was too tight and the valve hung open a faction of a second too long