So, I'm looking for some input on my drivetrain combination. There are several engines and transmission choices available. I'm also open to suggestions not listed.
Engine #1. 283 (+.060=292ci) forged flattops. Ported iron heads. DZ302 spec solid lifter cam, carb, intake, distributor.
This was in the truck when it was wrecked. Ran really good and pulled really hard from 5000-7500rpm.
Engine #2. 400 (+060=413ci) flattops. Junk 883 heads. Comp XE262 cam. Performer intake and Quadrajet carb.
Currently in my El Camino. Pulls like a diesel. Ridiculous torque but all done by 4500rpm.
Engine #3. LT1. Totally stock.
I have a useable high-miler. Photo is actually my brother's. Mine is on a stand directly behind the tarp.
Engine #4 LT1/302 hybrid. This can be built by using the block and pistons from an LT1 along with crank and rods from an L99 (aka baby LT1). I'd need to come up with an L99 and spend some money with a machinist.
Now, on to the transmissions. The 3.73 gearing won't be changed so an overdrive will be nice if not necessary. Compound first and cruise RPM are both to be considered. Originally the truck had a 2.79 rear along with a wide-ratio Saginaw 4-speed. With it's 3.50:1 1st gear I had a compound 1st of 9.765 (10:1 is considered ideal) and a 70mph cruise rpm of just over 2500. Pretty nice all around combo.
Transmission #1. New Process A833 (GM code is MY6). Basically, a 3-speed + overdrive. Very strong but heavy. Chrysler used the A833 behind Hemis. Shifter placement isn't ideal but is OK. 1st gear is 3.09 and overdrive is .73. with the 3.73s I would have a 11.52 compound 1st and a 2450 cruise rpm.
Transmission #2. WC T5. The one I have is from an S-10 but I could theoretically replace the gears with Camaro/Firebird set. Probably best suited for engines under 300lbs of torque but will live a long time behind much more if not abused. Great forward shifter placement in close to stock location. Great for the sleeper look. 1st gear is 3.76 and overdrive is .72. Compound 1st of 14.025 and cruise rpm of about 2450. Really would be better with rear gearing closer to 3.08.
Transmission #3. Muncie M20. This is originally from my El Camino and no overdrive. Compound first of 9.400 and cruise rpm of 3400. Photo was internet swiped.
Transmission #4. Aftermarket T56. I could pretty much choose my ideal gearing and there's 2 overdrive gears. Downside? They cost $3000+, bulky and kind of heavy. Special bellhousing required.
Your input and discussion is welcome.