WebPistons, Hypereutectic, Flat, 4.030 in. Bore, Cadillac, Chevy, GMC, Hummer, Set of 8. Part Number: SLP-H1129CPA75MM 4.75 out of 5 stars WebPiston Set, 455 Late Pontiac 1-FX Series -7cc Late Flat Top Piston Set. 4.180 bore. Part Number: DMS-1-6120-4180B. Not Yet Reviewed. Estimated Ship Date: Wednesday 4/19/2024 if ordered today. Drop Ship; Free Shipping; Special Order; $649.95. Estimated Ship Date: Wednesday 4/19/2024 if ordered today.
pontiac 400 pistons for sale eBay
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. 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. dhl performance
PONTIAC 7.0L/428 Pistons - Free Shipping on Orders …
WebMar 16, 2012 · The TRW stuff was made from VMS-75 - a very close cousin of 4032, the Clarkwood TRW plant never put a 2618 alloy piston into production - the mechanical presses didn't like the stuff. The growth factor differences between the two alloys approach nominal and have little impact on clearance, but the lack of silicon requires greater clearances … 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 … WebSpeed Pro/TRW Pontiac 400 Forged Coated Skirt Flat Top 4VR Pistons Set/8 +.030" (For: More than one vehicle) Opens in a new window or tab. Brand New. ... Sealed Power … dhl pension death