WebFeb 22, 2012 · Pontiac engines "enjoy" very unique chamber designs. They are actually TOO efficient (yes, it's possible). This is why Pontiacs don't "like" more than 34 degrees total timing with "stock" heads. Lowering static compression is the only SURE way to eliminate detonation. Enlarging the "dish" in the 428 piston is a fairly simple solution. WebFeb 27, 2016 · Speed Pro TRW L2303NF 030 forged pistons + moly rings compatible with Ford 428 Cobra Jet CJ +.030 over size Bore . Visit the Falcon Performance Store. 5.0 out …
Speed-Pro Forged Pistons L-2349F - Summit Racing Equipment
WebJan 12, 2024 · Building a Pontiac 428 and will use 1969 #48 heads. Need pistons to lower compression down to 9.5 or a little less for pump gas. Block is .030 now and may have to go .040, stock crank and stock rod length. This is a mild street car build. Already had heads. Just trying to figure out what is available to get this done. WebApr 27, 2007 · Hello, new to this forum. I am rebuilding a 428CJ and have a 1U crankshaft with TRW forged L2245 pistons and big bolt connecting rods. I know there were 1U, 1UA and 1UB crankshafts for the 428 and piston weight changed somewhere along the line. ctw carwash
tune up on 428 Pontiac , gas guzzler Hot Rod Forum
WebSpeed-Pro forged pistons are made from extruded VMS-75 aluminum alloy that's forged under 3,000 tons of pressure to "near-net" shape. After that, they're machined to their final … WebIcon Forged -10cc Dish Pistons, 428, 4.000" Str (0) Reviews: Write first review. SKU ... Icon Line of Forged Pontiac Pistons by Keith Black use a high quality forging that results in a … WebMar 4, 2024 · Mar 05, 2024 #4. Try Jerry at this number, he had a set of NOS TRW’s and rings a few weeks back, really nice condition. He’s located in Seattle. (425)754-6606. bdaurand. 129 1. Mar 05, 2024 #5. Dan, I sold a NOS set of C5 pistons to Franklin Tucker at the FE Race /reunion last year if you want to contach him. easiest tech