I'm getting ready to rebuild a 1980 Chevy K20 for a flat bed fish hauling truck on the beach in Alaska. Current (non stock I believe) engine specs out at a 396/402 3969854 casting with -950 heads. This will be mated up with a Th400 trans with 4.10 gears and 33" tires. I do not yet have the engine out of the truck to confirm bore diameter.
Engine runs but I have zero history on it and I'd like to go through it prior to driving it up from CA to AK. I'm curious as to a cam/head/intake combo for this low speed/torque monster that will be hauling up to 4000lbs of salmon a half mile or so across the beach in 4 low and then about 5 - 7 miles down the paved highway at 55mph to the processing plant.
I also have some peanut port heads (236 castings) that have had some minor clean up done to them, screw in studs and 3/8" guide plates installed.
Carb options on the shelf in the garage are a Holley vac secondary, Qjet and Edelbrock Thunder AVS (650 cfm).
So, with the above info in mind, I'm looking for advice for pistons to use with either the 236 or 950 heads and a cam recommendation. I'd also like to stick with 87 octane fuel.
I've read the peanut port threads but have not seen anything addressing those heads with a 396/402 build.
thanks,
Lance
https://www.facebook.com/alldrinsalmon/
Engine runs but I have zero history on it and I'd like to go through it prior to driving it up from CA to AK. I'm curious as to a cam/head/intake combo for this low speed/torque monster that will be hauling up to 4000lbs of salmon a half mile or so across the beach in 4 low and then about 5 - 7 miles down the paved highway at 55mph to the processing plant.
I also have some peanut port heads (236 castings) that have had some minor clean up done to them, screw in studs and 3/8" guide plates installed.
Carb options on the shelf in the garage are a Holley vac secondary, Qjet and Edelbrock Thunder AVS (650 cfm).
So, with the above info in mind, I'm looking for advice for pistons to use with either the 236 or 950 heads and a cam recommendation. I'd also like to stick with 87 octane fuel.
I've read the peanut port threads but have not seen anything addressing those heads with a 396/402 build.
thanks,
Lance
https://www.facebook.com/alldrinsalmon/