wey guys im just about done with my 383 my cam has a lift of 488i/e i plan on spinning this motor up to7000 rpm im in need of an intake and im thinking or a victor jr or rpm air gap any body have any imput on theese or any other intakes would like to order one the latest tuesday

 

What did you order?

 

What cam did you order? Whats the rest of the build on the engine?

You'll need some very strong rods, likely a forged crank, forged pistons and a bulletproof valvetrain to handle 7000rpm...

 

why forged pistons? to spin to 7k? Just get the valvetrain in good shape, and you can run hyper pistons.

 

Don't be so sure... friend of mine had a 383 with Hypers blow up this summer only spinning to 6500 rpm.

Ran 11.6X on the run before IIRC, but a couple of the pistons came apart on the next run.

I'd spend the extra bucks and go with forged if you are building something really hot.

 

On a 383 running with that much rpm piston speed is gonna be way up there. This creates larger amounts of friction with the cylinder wall. Which in turn creates large amounts of heat. Forged pistons will stand up to an absorb this heat better. Forged pistons arent just for boosted and nitrous engines.

 

Agreed... and thats probably why the 383 I was talking about blew up.

 

That sounds like it has more to do with the tune to me. Hypers are pretty strong, the problem is that theyr brittle, so they dont deal well with knock.

Anyway of course forged is better and more forgiving, if you have the money spend it.