Join Date: Aug 2002
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Re: a new intake?
Ahh.. well, they (for all intents and purposes) don't exist.
They wouldn't really do much other than shed a couple pounds off the intake and a lot of dollars from his wallet.
The stock intakes work fine for stock to wild IH SV engines.
My 304 needs more than a 2bbl.. but it's far far from stock. The 500cfm 2bbl chokes at about 5300rpm, so I'm customizing a 2bbl intake to take a 600cfm square-bore Holley. I want to see the other side of 6000rpm.
The stock intakes are all "air gap" as the aftermarket likes to call 'em. You can get a cooler intake charge by running the LPG intake gaskets which block off the exhaust cross-over under the intake.
Granted, they're all dual plane.. but the stock cam runs out of air about the same time the valves float.. around 4400-4500rpm. Even with a hotter cam, the exhaust ports are restrictive and need ported just to get 'em to breathe halfway well.. so a single-plane would just make the engine want to run at redline (3800rpm for the 345) all the time - nothing higher, and nothing lower.
Sure, the stock intake isn't aluminum bling-bling.. but I can powder-coat it "chrome".. [img]images/graemlins/laugh.gif[/img]