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Discussion Starter · #1 · (Edited)
SOLD!!!!!!!!!!!have a set of ported 243 ls6 lingenfelter heads gmpp #88958622 ,,, cnc ported,milled .055,zo6 light weight hollow valves,,they flow over 200cfm at 0.300 lift and 290+ at 0.500 lift,, u have to check what cam u run max valve lift on stock springs .570,,will need new valve seals and springs,,right now i put stock springs on them,going to use the springs i took off on anther project,..asking $500.00 for the set plus shipping,,,new they cost $1000.00,,,google the 88958622 part number for more info,,thanks
 

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Glws! Wish these had .650 springs!
 

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06 TrailblazerSS AWD
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have a set of ported 243 ls6 lingenfelter heads gmpp #88958622 ,,, cnc ported,milled .055,zo6 light weight hollow valves,,they flow over 200cfm at 0.300 lift and 290+ at 0.500 lift,, u have to check what cam u run max valve lift on stock springs .570,,will need new valve seals and springs,,right now i put stock springs on them,gone to use the springs i took off on anther project,..asking $500.00 for the set plus shipping,,,new they cost $1000.00,,,google the 88958622 part number for more info,,thanks
What would be needed to run these on a tbss?
 

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Discussion Starter · #5 ·
same heads on tbss but these are gm performance heads cnc ported by lingenfelter ,,u just cant put a big cam ,u will have to check piston to vave clearance
 

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Discussion Starter · #17 ·
i ran a 207/220 571/578 cam ,,had a ls1 5.7 in my old silverado..it was my work truck..i removed engine i but back the 4.8,and sold truck.now Iam back bought another tbss
 
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