Quote:
Originally Posted by ManNamedJed
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It's the 4th installment where they get down to the Vortec heads. Here's what they ended up with and it made 384hp(5700)/401tq(3600):
( They claim their porting was worth 13hp )
"GM Performance Parts’ iron Vortec heads that flow air like a wind tunnel. We achieved 384 hp by simply pocket-porting the heads and bolting them to our existing combination. As a quick overview, the engine is a stock bottom-end GM Goodwrench 350 supplied by Scoggin-Dickey with a Comp Cams 268 Xtreme Energy camshaft (224/230 degrees at 0.050-inch tappet lift and 0.477-/0.480-inch valve lift with 110-degree lobe separation angle), roller-tipped rockers, and the Vortec heads. The rest of the engine is outfitted with an Edelbrock Performer RPM intake, a Holley 750 double-pumper carburetor, Hooker 1-5/8-inch headers, and a pair of Hooker 2-¼-inch turbo mufflers. That’s it, except for the stock HEI distributor, MSD wires, and 92-octane pump gas."
Here's the article.
http://www.superchevy.com/how-to/463...gine-build-iv/
-klb