5.3 Truck heads/good for my setup?
09-26-2005, 06:42 PM
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5.3 Truck heads/good for my setup? I have a 393ci LS6 motor with a 4.00" stroke and 3.955" bore (the bore number is comming from memory, what ever it take to get a 4.00" stroke to a 393ci).
The motor has a set of 6.0l heads on it that are junked (someone ported them before I had the car). Between the big combustion chambers and the crappy port job, they arent going it for my car. It made 406rwhp and 382ft lbs with a 228/230 571/573 cam. This is all on a perfect tune so the car is obviously not making the power it should be.
My question is I have a chance to get some completely stock, assembled 5.3l truck heads. Would it be a wise decision to get these and send them off to someone to be ported? With my small bore (for a stroker) I know Im limited. I dont want a crazy dyno queen or to break any records, just to get the car closer to where it should be with its current mods.
Thanks for any help in advance!!
The motor has a set of 6.0l heads on it that are junked (someone ported them before I had the car). Between the big combustion chambers and the crappy port job, they arent going it for my car. It made 406rwhp and 382ft lbs with a 228/230 571/573 cam. This is all on a perfect tune so the car is obviously not making the power it should be.
My question is I have a chance to get some completely stock, assembled 5.3l truck heads. Would it be a wise decision to get these and send them off to someone to be ported? With my small bore (for a stroker) I know Im limited. I dont want a crazy dyno queen or to break any records, just to get the car closer to where it should be with its current mods.
Thanks for any help in advance!!
09-26-2005, 11:23 PM
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Originally Posted by EvoByDarwin
Oh for sure. Just want to make sure I dont regret getting these heads.
09-28-2005, 10:08 AM
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317 heads have huge 72cc combustion chambers and low compression, and are made for a 4 inch bore. i say mill the 5.3 heads and have them ported for increased compression, the cam is not completely too small, but u could pick up more top end it seems like with a bigger one