Reply to "Edelbrock Clevor"

random thoughts from a wine soaked mind:

(1) The reason why the CHI 3V heads were allowed in the engine masters competition was because they were deemed to be "street heads", not race heads. Had they been deemed race heads, they would not have been allowed. John of CHI has stated publicly that the main reason he developed these heads was because iron 4V heads have always been hard to come by in Australia, and he wanted a head with iron 4V performance. Which brings me to this point, the CHI 3V head DOES NOT out-perform the iron 4V head. Granted, the 3V head will have better throttle response on smaller displacement motors. But the 4V head has always been capable of supporting 750 bhp at 7000 rpm on a 7 liter motor. Now look at the specs on Chris' motor.

(2) As you know, the best way to describe the 3V head is to say it is a 2V size port that has been raised so that the port's roof is the same height as the port roof of a 4V port. This is a generic statement and not 100% accurate because the intake port of each one of CHI's 3V heads is a little bit different. The vast majority of Cleveland intake manifolds made in australia are 2V intake manifolds. Here's a dirty little secret: The 3V heads were designed to be used with 2V intake manifolds! 2V intake manifolds will bolt onto 3V heads and the runners will line up with the ports in the head. This is because the heads were designed a little wider than Ford's iron heads, therefore the VEE is narrower, and the intake manifolds ride higher in the VEE. There will be a small gap between the intake & the block at the valley rail ends, but spacers are available to fill those gaps. The folks at CHI don't advertise this fact as they once did, I think its because they like to sell those $700 intake manifolds. They could sell their heads at cost and still make tons of money with those intake manifolds.

(3) Vic Edelbrock has the money to build any flippin' head he wants to. He could put all the other manufacturers out of business if he wanted. But he doesn't do that. Why? Because down inside Vic is just an ol' hot rodder with a heart of gold. Its why he's such a successful businessman. You can bet your sweet arse that John at CHI & Dave at AFD are GLAD ol' Vic chose to make humble pie 2V heads instead of 3V heads or stuffed port 4V heads, because if he had, he would have put them out of business. Which is probably why Vic chose to make 2V heads, its just the kind of guy he is.

cowboy from hell