8/3/2023 0 Comments 268 comp cam in 350While we could have added a bigger cam, a single-plane intake, or even nitrous, we wanted to see if we could hit four big ones without major changes. Thats it, except for the stock HEI distributor, MSD wires, and 92-octane pump gas.Īfter last installment's exercise, we really wanted to make 400 hp. 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. 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. We achieved 384 hp by simply pocket-porting the heads and bolting them to our existing combination. Last time, we bolted on a set of GM Performance Parts iron Vortec heads that flow air like a wind tunnel. Since weve already delivered the headline news, here are the details: 408 hp at 5,800 and a stunning 430 lb-ft of torque at 3,700 rpm with only minor changes to the engine! How did we do it? Just follow the bouncing ball. In the continuing saga of the Scoggin-Dickeysupplied Goodwrench 350 that weve been beating on for five installments, the story is really starting to get interesting.
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