best cam for a 6.0
02-14-2009, 03:56 PM
#11
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Correct. The XER273 is a pretty good 'off-the-shelf' cam for a build such as yours. If your proposed LQ9 is actually getting 60-61cc heads, you're looking at 11-11.2:1 compression so plan to fill up on premium octane only and be sure of your tune.
To take full advantage of the heads and cam, I highly recommend looking into the Trailblazer SS intake manifold, throttle body and a good exhaust. A standard truck intake with stock exhaust manifolds will hold a set of TFS heads back like the Hoover dam.
If it were my truck, I'd have the XER273 custom ground on a 112+2 instead of a 114+2.
To take full advantage of the heads and cam, I highly recommend looking into the Trailblazer SS intake manifold, throttle body and a good exhaust. A standard truck intake with stock exhaust manifolds will hold a set of TFS heads back like the Hoover dam.
If it were my truck, I'd have the XER273 custom ground on a 112+2 instead of a 114+2.
02-14-2009, 04:35 PM
#12
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Correct. The XER273 is a pretty good 'off-the-shelf' cam for a build such as yours. If your proposed LQ9 is actually getting 60-61cc heads, you're looking at 11-11.2:1 compression so plan to fill up on premium octane only and be sure of your tune.
To take full advantage of the heads and cam, I highly recommend looking into the Trailblazer SS intake manifold, throttle body and a good exhaust. A standard truck intake with stock exhaust manifolds will hold a set of TFS heads back like the Hoover dam.
If it were my truck, I'd have the XER273 custom ground on a 112+2 instead of a 114+2.
To take full advantage of the heads and cam, I highly recommend looking into the Trailblazer SS intake manifold, throttle body and a good exhaust. A standard truck intake with stock exhaust manifolds will hold a set of TFS heads back like the Hoover dam.
If it were my truck, I'd have the XER273 custom ground on a 112+2 instead of a 114+2.
what does the +2 mean adds 2 degrees more advance in the timing i guess
02-14-2009, 04:44 PM
#13
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More than likely the LQ4 will be cheaper.
It means the intake lobes are ground 2 degrees ahead of the exhaust lobes. By bringing the lobe separation angle and intake center line down to 112/110 instead of 114/112, you will help increase the cylinder pressure and low end torque of the XER273.
yeah i def plan on running only 93 or better
what does the +2 mean adds 2 degrees more advance in the timing i guess
what does the +2 mean adds 2 degrees more advance in the timing i guess
02-14-2009, 05:18 PM
#16
You have better head options with the LQ4 since most everything is geared towards the smaller combustion chambers of the ls1/ls2 heads, assuming you don't want your compression over 11:1. The only real advantage I see with the LQ9 is better quench.
02-14-2009, 05:24 PM
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well im pretty sure that im going to end up with a LQ9 what is a good price on them ive found a couple for around $1000 up to $2500