Valley Cover Help
Valley Cover Help I have a 02' LQ4 which has been bored .065 over so running all LS3 internals. Pistons, rods, even crank (58x), as well as heads (0821) and an LS3 intake.
From my understanding I have to relocate the knock sensors from the valley cover to the side of the block, correct? Question is with the crank change to 58x, and LS3 front cover (pn# L200010106) which relocates the cam position sensor, which valley cover should I go with: LS2, LS3 or can I reuse the LQ4?
From my understanding I have to relocate the knock sensors from the valley cover to the side of the block, correct? Question is with the crank change to 58x, and LS3 front cover (pn# L200010106) which relocates the cam position sensor, which valley cover should I go with: LS2, LS3 or can I reuse the LQ4?
Only the early style will fit. There are two different ones depending on the PCV setup, but both will have the knock sensor towers. Basically reuse the one you have, but you should plug the knock sensor holes so trash doesn't get in there...
Cool, thanks! So upgrading to the newer style with the breather spout isn't actually necessary?
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Yeah, but isn't that made for people that are swapping to the later (58x) engines and ECM's while keeping their harness intact? The only experience I have is with a carb'ed LS1. Nothing EFI yet, but I do read a lot. And no, I didn't sleep in a Holiday Inn last night...
The 24x knock sensors are single wire, resonant type.
The 58x knock sensors are two wire flat response type.
You'll need the two wire type. They bolt on the outside of the block with a through bolt. Cavity A, blue wire, signal. Cavity B, gray wire return.
You'll need to install dummy 24x knock sensors in the valley to get the valley cover to seal around them. OR you can somehow fab up a closure for the knock sensor holes.
The 58x knock sensors are two wire flat response type.
You'll need the two wire type. They bolt on the outside of the block with a through bolt. Cavity A, blue wire, signal. Cavity B, gray wire return.
You'll need to install dummy 24x knock sensors in the valley to get the valley cover to seal around them. OR you can somehow fab up a closure for the knock sensor holes.
