Olds 403 cam run in ready!
11.05:1 CR, iron #7 heads with mirror polished chambers, Exhaust runners and piston tops, running 10% xylene in premium gas, can't hear possible knocking due the noise with open headers.
Revs get up and down quite fast, nice.
403 Powered Olds 442.avi
Quick video of my Olds 442 after installing #5 heads and bumping the compression ratio up a bit. Motor is a 77' olds 403. The car won't hook up with the street radials and smokes em though 2nd gear.
My fends Oldsmobile 403 running on test stand after installing the inner springs
this engine will be going in to his 1986 Oldsmobile 442
SBO 403 + .030 10:1
Edelbrock performer RPM port matched to BBO heads
Probe pistons flat top with -3cc valve reliefs
Aluminum bare castings pro comp heads that have been goin through 100% and port matched
In 2.072"Ex 1.680" valves
Lunati Voodoo 60803 - 227/233 @ .05 .510/.522
Scorpion 1.6 roller rockers
Forges 330 crank
403 rods have been resized with ARP and fletch has been removed and shot peened
J&S HALO Girdle
Moroso 7qt oil pan
HV oil pump
Olds 403 firing
"79 trans am with built Olds 403. Still haven't had the timing light on in it and the carb jetting is completely off being that I bought it used off of eBay, but hey it got it to run. Hasn't been on Dyno yet but guessing 550hp when tuned.