Oldsmobile 403 engine test run – ’79 Pontiac Trans Am

My Oldsmobile 403 engine on test stand being run last May for the first time after engine rebuild. Block was bored .039 over, now a 409ci. Keith Black Hypereutectic pistons, Crane RV cam and other added improvements. Heads were ported and polished. Engine now going back into the ’79 Pontiac 10th Anniversary Trans Am. Will run it on Dyno and get the rebuilt carb rejetted in November. btw – I also had the original Exhaust Manifolds blasted and then Ceramic Coated silver. This helps keeps the heat where it should be and then blows it out the back. They also look better!
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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
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