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pockets · 10-01-2010, 11:14 AM

.490. Here is the link from Summit: CompCams XE274H, as shown in the August 2010 issue of Super Chevy. The 355 made 441hp @ 5900 and 438lb-ft @ 4500. The 383 (which I'm building) made 480hp @ 5700 and 495lb-ft @ 4300.

The 355 had flat tops with 2 valve reliefs and 10.2 compression. The 383 was -9.8cc dished with the same compression.

10-01-2010, 11:14 AM	#12
pockets Registered User Join Date: Sep 2010 Location: Broken Arrow, OK Posts: 428	Re: ebay heads? .490. Here is the link from Summit: CompCams XE274H, as shown in the August 2010 issue of Super Chevy. The 355 made 441hp @ 5900 and 438lb-ft @ 4500. The 383 (which I'm building) made 480hp @ 5700 and 495lb-ft @ 4300. The 355 had flat tops with 2 valve reliefs and 10.2 compression. The 383 was -9.8cc dished with the same compression. __________________ Project Bad Karma Last edited by pockets; 10-01-2010 at 11:18 AM.