head diffs?
05-26-2009, 08:38 PM
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Staging Lane
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head diffs?
i have a 05 chevy truck with a 5.3 and i got a blown up ls1 given to me and the top end is good was wondering what the diff in the heads were? what valves and combustion chamber is in both and i plan on getting one set built just want to know the specs on both heads
05-26-2009, 09:32 PM
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97-2000 ls1 heads were 241 or 853 heads and 2001 up- had ls6 243 heads... 5.3 heads 706 & 852 & 862
241 and 853 heads
chamber Volume:66.67cc
Comp Ratio:10.1:1
Intake Volume:200cc
Exhaust Volume:70cc
Intake valve Diameter:2.00-in
Exhaust valve Diameter:1.55-in
243-(ls6)
Chamber Volume:64.45cc
Compression Ratio:10.5:1
Intake Volume:210cc
Exhaust Volume:75cc
Intake valve Diameter:2.00-in
Exhaust valve Diameter:1.55-in
5.3
706 & 852 & 862
Combustion chamber Volume:61.15cc
Compression Ratio:9.5:1
Intake port Volume:200cc
Exhaust Port Volume:70cc
Intake valve Diameter:1.89-in
Exhaust valve Diameter:1.55-in
241 and 853 heads
chamber Volume:66.67cc
Comp Ratio:10.1:1
Intake Volume:200cc
Exhaust Volume:70cc
Intake valve Diameter:2.00-in
Exhaust valve Diameter:1.55-in
243-(ls6)
Chamber Volume:64.45cc
Compression Ratio:10.5:1
Intake Volume:210cc
Exhaust Volume:75cc
Intake valve Diameter:2.00-in
Exhaust valve Diameter:1.55-in
5.3
706 & 852 & 862
Combustion chamber Volume:61.15cc
Compression Ratio:9.5:1
Intake port Volume:200cc
Exhaust Port Volume:70cc
Intake valve Diameter:1.89-in
Exhaust valve Diameter:1.55-in
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