Mustang Pro Stock?

[RJ]

Originally Posted by hemicop

Okay, so they'll use an IHRA type P/S motor or do further R&D on Ford's new NASCAR engine, add a drag-race cam & a sheetmetal intake to it & there you have it! A high RPM, deep breathing, durable engine done at the expense of NASCAR with relativly little R&D required & a proven shortblock. I'm a Mopar fan but you really can't fault the game-plan.............

Wow, I'm scratching my head and laughing at the same time wondering if you are for real? if so, you need to quit while you're behind. Neither scenario, as you attempted to describe it, is happening. The IHRA head/valvetrain are way to big and bulky. The new Ford NASCAR engine has 4.500" bore spacing, how are you going to get a 4.700" bore piston in that one with "relativly little R&D required"?

[JHeath]

Hemicop, IHRA Fords use a Boss 429 style head which is nothing like the new head being developed. In case you haven't noticed NHRA cars are 500 CI, IHRA cars are 815 CI, the only thing similar would the name on the valve covers.

[hemicop]

Simple --- shrink the specs of the old Boss or the old "465" (?) head, use the new Nascar block. The point I was trying to make is that with the new Nascar motor, which according to Hot Rod Magizine is already developed,all that's left is to develop a top-end which Ford has plenty of experience in P/S with both Hemi-type & wedge heads. I KNOW you couldn't simply do an R&R for the top-end of an IHRA motor. AGAIN, the point is, alot of the technolgy is already out there so they're not really developing a "new" motor