RAM AIR V 497 CID by SPOTTS PERFORMANCE
Details on the building from to start to start up of a 455 bored and stroked to 497 CID with Ram Air V heads by McCarty Racing. This is a pump gas Pontiac going in a 1971 GTO convertible that will be equipped with EFI.
Ram Air V 455 street engine
Idle demonstration www.ramairv.com
DCI Motorsports Ram Air 5 475 cu. in., 9-1, engine start up for the first time.
Here is a little video of Steve Page's DCI Motorsports RA5 Blower engine. This is going to be supercharged eventually so the compression is low at 9-1. Even with this low compression the engine is pretty snappy!!! For the ones that have not been following Steve's engine build,here are a few spec's and stats. Steve done this build right. First we started with an aftermarket iron block that was fully DCI prepped by line boring & honing,setting deck height, bore & hone with deck plate,o-ring,dry decking,radius oil passages,and de-burring. We used JE Forged supercharged pistons 4.350" in diameter. Total seal supercharged ring package. LSM custom ground billet roller camshaft with a .690" net valve lift, Crower Hippo roller lifters, Harland Sharp 1.65-1 shaft roller rocker arms, Trend 3/8 heavy wall pushrods. DCI RA5 cylinder heads with our street port flowing just over 400 cfm at .700" and 370 at .600" on the the intake with a 2.25" valve. The Exhaust flows almost 280 cfm with a 1.68" valve. DCI cast aluminum RA5 intake with a Holley 1050 Ultra Dominator carburetor. ARP head studs, DCI CNC Billet aluminum intake stuffer, Stef's large capacity aluminum oil pan, Luhn Performance High pressure oil pump and pickup, Luhn Performance grooved cam bearings, KRE aluminum timing cover, Cloyes Billet double roller timing chain set, ARP cam and crank bolt, Innovators West Aluminum balancer, MSD Billet distributor with a bronze gear. As you can see the list of parts looks like a who's who in the world of high performance.
The Pontiac Super Duty 455 Story
The Pontiac Super Duty 455 was unique in several ways. This video will give a bit of insight into what makes it special. The background music is Funkytown by Lipps Inc. The Engine Block & Component Photos Are The Property Of Jim Dietzler/HPP.