Hey, i have a 02 ss bracket car. I blew up the motor at the end of last season.I really dont have the money to buy a engine right now but i do have a low miles 5.3 out of a 06 silverado.I was wanting some advice on using this motor for next season. I have a 220/224 cam in the old motor i could use again,along with a fast 90/90 setup.I was wondering if the heads on the 5.3 should be milled to use them for a drag only car or should i use stock ls1 heads or something other than aftermarket heads to get the most bang for the buck?? Also would the sensors be in the same location so i can use the factory wiring harness in the camaro?

 

The Harness is a direct swap, you may have to drill/tap the Drivers side ear on the Block to mount the F-body Alternator.

I would mill the Heads, take advantage of the small Chambers.