1973 360 upgrades
This is what I would do for a level one upgrade.
Dual exhaust off of the manifolds with an H pipe.
An early factory 4bbl intake.
Carb of choice. I used a Edelbrock 600
A cam change would depend on what the gear ratio is, tire size, converter stall, compression ratio & weight of vehicle. If the vehicle is heavy, as a truck is, a duration @ .050 of no greater than 210. That will work with a low compression engine, Hwy gears and a tall tire. I’m guessing your tires are about 28 inches.
A “Stage II” kind of build would move to headers, 2-1/2 exhaust piping, H pipe, aluminum intake, 750 carb, slightly larger camshaft not more than 224@050. 3.55 minimum gear ratio, 3.90’s are better. Change the torque converter. Burn rubber!
An ingnition upgrade, air cleaner upgrade would be good.
I’m going to be picking up a 1985 D150 with a 1973 360 in it. Owner claims the following
Newly rebuilt 1973 360 built with hastings moly rings, and king racing engine bearings, has a summit racing billet distributor and ignition box good for shift points up to 6500 rpm, small RV can do not know the specs on the cam other than that. Reused stock pistons.
Has dual exhaust with the factory exhaust manifolds. And still the factory intake with a 2 barrel carb.
My questions are what can I do to make more power with this? Headers? Obviously a 4 barrel swap. What intake should I use? And carb? Thinking about maybe a 625 Street Demon Carb? Would like to make more power but stay on a tight budget.
Would maybe do a cam swap in the future? Don’t know if I have the skills to do that though. Truck also has a suregrip don’t know the gear ratio and a 727 tranny. Wanna make it a fun truck. Another thing would I be better off just putting a 5.9 Mag in it- converted over to carb? I can do the intake swap. Any suggestions highly appreciated!!!!!!
