You can view this engine package along with pricing at the following link: http://www.proformanceunlimited.com/o. With their 4.250 or 4.500-inch billet cranks and 4.40-inch pistons on the shelf, you can easily get between 517- 548 cubic inches out of their block. The block is then bored with a Rottler Boring Bar and honed with a Sunnen CK10 hone. Design work began in February 1969 and running engines were provide to Andy Granatellis STP race team less than 90 days later. However, like everything else on this block, they were designed with the ability to be enlarged up to a whopping 1.00-inch bore for severe-duty applications. You can put on aftermarket main caps, and run girdles and all that stuff. ','@'); } document.getElementById('eb3d9d1117f8c2a55a87').appendChild(document.createTextNode(eb3d9d1117f8c2a55a87())); Copyright 2023 Butler Performance Inc.. All Rights Reserved. pattern and then deal with the lead time while its custom-made.. V-8 engines. Beyond that you might want to consider the DX block. But for basic purpose we'll concentrate mainly on the 350 small block V8. Atop a taller, higher manifold was fixed a four-barrel carb. The cams were also drilled to carry oil in their journals. %PDF-1.5 The Camshaft - Since cylinder heads are the most important part of the engine, then we would have to say that the camshaft is a close second. A gear drive supported by roller bearings in an aluminum gear case at the front of the motor spun the cams, while a driveshaft was used in the standard camshaft position to transmit motion to the oil pump and distributor. Coming from a drag racing background, there is another performance aspect that is at the front of Johns mind, and thats durability. I happened on a stack of Olds parts I could pick up. Number Two: Dodge and Plymouth 426 Hemi . Very good motor. But as the stock HiPo 289 already made 271 hp, and Shelby was getting 306 hp with bolt-on parts, it was deemed that this internal combustion engine was not worth pursuing. The 455 is a very forgiving and long-lasting engine. Nineteen sixty-six saw the mid-year introduction of the W30 Force-Air package, which was the first of many W performance designations (F-85/Cutlass W31, Toronado W34, W25 fiberglass ram air hood, and W27 aluminum axle carrier and cover, among others). The Rocket Racing block comes with .842-inch lifter bores as standard.