The 5.3 (2005) I bought for my truck has square rails, the one I got for free for my brothers truck (03 or 04) has the round rails, any difference? One better than the other?
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The 5.3 (2005) I bought for my truck has square rails, the one I got for free for my brothers truck (03 or 04) has the round rails, any difference? One better than the other?
The square ones came on flex fuel vehicles. Mine has them as well
Good deal, I had no idea it was a flex fuel motor. So bigger injectors too then
Maybe...
if your VIN ends in like a "v" i think it is, then you have flex.Quote:
Originally Posted by sleeper1500
the square ones supposly flow as well as aftermarket ones
Just make sure you get the fuel setup for returnless since you are sporting an 05 setup.