Aftermarket/Replacement Cylinder Head Rule Change

[ppmracing]

Originally Posted by Todd Hoven

One of the candidates for a replacement head for Pontiac round port was a head made by Kaufman Racing. Everything was a go but Bruce rejected it because of angled spark plugs. Guess that is not a problem anymore as long as you race a Chevrolet.

When we tryed to get the aftermarket heads leagal for the Mopar BB , we first got the Mopar performance 452-A heads leagal for SS onley. At that time their was no way that the Edlebrock could be legal for Stock/ SS, because off onley one thing, their was angel spark plugs. Bruce told us now way ! Then after a year or so Edelbrock came with a straight plug style, and it was ok.
But that was a Mopar, not a Chevy !.

[Jon Sarrett]

Originally Posted by Dwight Southerland

Yes. And both Stock a Super Stock rules are under constant attack for advantage. Edelbrock pn 60947 heads that were accepted last year for the SBC and the current Jones Engineering heads for SS are angle plug heads. Even though NHRA rules specifically state that the spark plug angles cannot be changed and NO Chevrolet small block V8 EVER came off an assembly line with angle plug heads. Can you imagine a 327-275hp engine in Stock Eliminator with angle plug aluminum heads??? Write your division director, the national tech department, the NHRA national techincal vice-president, the NHRA CEO, your mother and any one else you can think of to object. Such actions and decisions will destroy the eliminators faster than you can imagine.

Actually, LT-1 heads are angle plug.

[FED 387]

L-98 Corvette was an angle plug head too I believe---FED 387

[Dwight Southerland]

Originally Posted by Jon Sarrett

Actually, LT-1 heads are angle plug.

But the replacement heads listed are for 62-70 year models.NO angle plug heads during those years.