|
Re: ls/lm head question.
I wouldn't bother with the head swap... not enough of a flow difference.
If your not doing a full cam, pushrods, springs, rockers, intake manifold... etc.... you won't see a difference except in your wallet.
Keep the truck manifold unless your going to an LS6.... don't doubt the truck manifold... makes better low end torque than the ls1 intake manifold
Casting Number 706 and 862
Head: 1999+ 4.8L / 5.3 Liter Truck
Material: Aluminimum
Part Number:
12559862
12561706
Combustion Chamber Volume: 61.15cc
Compression Ratio: 9.5:1
Intake Port Volume: 200cc
Exhaust Port Volume: 70cc
Intake Valve Diameter: 1.89 inches
Exhaust Valve Diameter: 1.55 inches
Casting Number 243, 799
Material: Aluminimum
Part Number:
12564243
Combustion Chamber Volume: 64.45cc
Compression Ratio: 10.5:1
Intake Port Volume: 210cc
Exhaust Port Volume: 75cc
Intake Valve Diameter: 2.00 inches
Exhaust Valve Diameter: 1.55 inches
|