How do you like the other 283 in the lower gears 1st-3rd ? Does it get the truck moving quickly ? My camaro 1st gear is 2.95 and 5th is .63 I dont mind downshifting to 4th as Im sure it will be lugging alot in 5th with my 3:73 rear ratio. I have a s10 t5 in it right now the ratios are terrible when i pull the engine to do the engine work i will be swapping the camaro gear box on and the tail housing from another s10 t5 i have . Just have to relocate the speedo gear.
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Originally Posted by Lugnutz65
The 283 mentioned in this thread had to go back to the builder after 600 miles of driving. They tore it down under warranty and rebuilt it. It had a faulty lifter.
So while the other engine was out of the truck, I swapped in a different 283. It’s a fresh Jasper rebuilt 1966 283 with powerpack heads and a GK 930 cam. I think they perform about the same. I am also running a Camaro T5 (assembled in an S10 case and tailshaft) with 0.72 OD and 3.73 rear axle and 29” diameter rear tires. Neither 283 likes a slight hill in OD unless RPMs are 2300 or higher. I usually cruise at 65 MPH which means I’m at 2000 RPMs. So I’m downshifting on small hills.
I’m swapping in an S10 T5 with a 0.86 OD gear. That will bump the RPMs up enough for less downshifting and I doubt the MPGs will suffer much.
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