WhitewallWill
Active member
Hi All, I'm a newcomer to inline 6 motors. Building a truck on the HAMB and was referred here by French Town Flyer as a result of my quest to find an intake manifold. I've only ever done V8's so quite interested to see what we can come up with for a horsepower increase. Also some of the power adder stuff is not traditional Hot Rod friendly so won't show that part over there.
Truck was done in the 80's likely as a high schoolers project, we don't know what engine we have yet. We got it running last spring and I drove it to work for about 6 weeks. When winter arrived we cut it all up. In the works so far is our home built intake manifold using the lower EFI intake and thickwall 2-7/8" tube - couldn't buy a C series Offy manifold. I plan to split the manifold between 3 and 4 intake runners and put a 2 bbl carb plate in line with motor. Planning for 300-350 HP as I drive both freeway and urban streets. Fundamentally truck would be a Hotrod/worktruck. The plan is to stage improvements including dynoing current stock setup out of curiosity. Phase 1 EFI exhaust manifolds (which I have already), and intake manifold we are building. Truck is on propane now with a farm 4 speed and 3.70 rear and 29" tire. Phase 2 is install our turbo in the rear then ultimately do a Phase 3 turbo fab under hood. The reason for phasing is because I want to drive it while doing these steps. Right now we are doing all the metal work and target roadworthy date is May 2022 for my oldest kid's high school Grad parade. We are not tucking into the motor yet but, plan to increase valve size, port and polish head, roller rockers then put about 6-8 lbs of boost into it using blow through Propane carb. Will evaluate for full build when we start work on the engine. It ran pretty good prior to us shutting down for the season but, I have done nothing to the engine yet. Resisting all temptations as we struggle to get the truck done. The Journey is on.
Truck was done in the 80's likely as a high schoolers project, we don't know what engine we have yet. We got it running last spring and I drove it to work for about 6 weeks. When winter arrived we cut it all up. In the works so far is our home built intake manifold using the lower EFI intake and thickwall 2-7/8" tube - couldn't buy a C series Offy manifold. I plan to split the manifold between 3 and 4 intake runners and put a 2 bbl carb plate in line with motor. Planning for 300-350 HP as I drive both freeway and urban streets. Fundamentally truck would be a Hotrod/worktruck. The plan is to stage improvements including dynoing current stock setup out of curiosity. Phase 1 EFI exhaust manifolds (which I have already), and intake manifold we are building. Truck is on propane now with a farm 4 speed and 3.70 rear and 29" tire. Phase 2 is install our turbo in the rear then ultimately do a Phase 3 turbo fab under hood. The reason for phasing is because I want to drive it while doing these steps. Right now we are doing all the metal work and target roadworthy date is May 2022 for my oldest kid's high school Grad parade. We are not tucking into the motor yet but, plan to increase valve size, port and polish head, roller rockers then put about 6-8 lbs of boost into it using blow through Propane carb. Will evaluate for full build when we start work on the engine. It ran pretty good prior to us shutting down for the season but, I have done nothing to the engine yet. Resisting all temptations as we struggle to get the truck done. The Journey is on.
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