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LL8 4.2L - 2nd Gen
Regrinds only, on customer provided cores. Price includes necessary machine work to make them grindable (cutting new centers). Please remove the gears before sending them in.
We can grind the exhaust lifts .030" higher, but it does reduce the base circle by an extra .040", which can make them harder to shim and can cause valve guide wear if your geometry isn't corrected.
For customers more familiar with 2 valve pushrod engines, please be aware that 4 valve engines on average require 10-20% less duration and often much less lift to make the same horse power and turn the same RPM due to the larger runners and increased valve area. For example, a stock 2nd Gen LL8 makes the same horse power per liter as a stock LS3, and at the same RPM, but with 18% less duration and .120" less lift. So a 170 @ .050" in a stock LL8 runs like a 208 @ .050" in a stock LS3. By the same math a 192 @ .050" in an LL8 should run very similar to a 234 @ .050" in an LS based engine.
Your Price: REFERENCE ONLY - NFS
Chevrolet LL8 2006-2009 Stock Specs
RPM Range: 1000-6000
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Your Price: $429.99/pr + Customer Cores
236-46RH LL8 First Gen Camshafts
RPM Range: 1500-6200
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Your Price: $429.99/pr + Customer Cores
246-58RH LL8 First Gen Camshafts
RPM Range: 2000-6600
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Your Price: $429.99/pr + Customer Cores
258-66RH LL8 First Gen Camshafts
RPM Range: 2400-7000
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Regrind pricing is subject to change without notice. If the cams require extensive cleaning or additonal machine work to make them grindable it will result in an additional charge as explained on the regrind form. Thank you. |
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