Speed dating el paso tx

Speed dating el paso tx

The lobe-separation angle is 112 degrees, and valve lift is 0.459/0.470 inch using stock replacement shaft-style rocker arms (Sealed Power PN R857) with a 1.55:1 ratio.Using what is perhaps the smallest cam seen in CC this decade, we ran four intakes across the 455: an Edelbrock Performer, an Edelbrock B4B, a TA Performance SP1, and a TA Performance SPX.In fact, when Editor Glad did finally score a junkyard 455 while planning for this latest Buick story, the block turned out to be damaged beyond repair.Instead, the engine core we used came from the voice of the industry, Dave Mc Clelland, who keeps a few in stock to feed his original ’70 GS455 four-speed convertible.With Buick cores starting to thin out, we figure you’d better get it right when you build one, not only to preserve the breed but also to live up to the Hemi-stomping heritage with some real street power.That’s what this story is here for–to deliver the facts about what works and what doesn’t on a simple, budget-built 455.The only nonstock components in the short-block are ARP rod bolts and Speed-Pro forged pistons, PN L2353F, in a 0.030-inch overbore (stock bore is 4.3125, so our bore is 4.3425 for 462 ci).

Interestingly, we inspected the two Edelbrock intakes and the only difference we could see in them was the shape of the carb pad and the fact that the Performer places the carb about 3/8 inch rearward as compared with the B4B.The ’75 to ’76 castings have factory 78cc chambers and are never used by TA.The ’70 heads are 68 cc, and the ’71 to ’74 units have 71cc chambers that are milled to 69 to 70 cc during the rebuild process.The Baseline Long-Block All the testing in our stories was done with the old Mc Clelland short-block rebuilt by JMS Racing Engines.The combo is as basic as it can get and easily duplicated.

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However, they do have some drawbacks, including an old-school 5/64-inch ring pack and a hefty 758-gram weight.

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