Would 5.3L heads be a bad idea for my LS1?
#1
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Would 5.3L heads be a bad idea for my LS1?
Timing chain snapped & my valves are wiped out and I'm considering just replacing both heads and putting on some complete 5.3L heads.
Thoughts? Bad idea?
Thoughts? Bad idea?
#2
I wouldent do it....
But then agian it all depends on the size of the vavles.
depending on whatcha buy you could end up losing alot of power.
Besides theres not much of a price diffrence.
If the intake and exshust are smaller then your going to lose power and your motor wont work to MFG Specs.
If you dont mind the power cut and they fit properly go for it but say good bye to your fuel econmey its gonna drop with lesws air intake and harder to push out exshust from your combustion chamber
But then agian it all depends on the size of the vavles.
depending on whatcha buy you could end up losing alot of power.
Besides theres not much of a price diffrence.
If the intake and exshust are smaller then your going to lose power and your motor wont work to MFG Specs.
If you dont mind the power cut and they fit properly go for it but say good bye to your fuel econmey its gonna drop with lesws air intake and harder to push out exshust from your combustion chamber
#3
Stock LS1 Heads
Chamber 66.67 cc 0.100 0.200 0.300 0.400 0.500 0.550 0.600
Intake 200 cc 67 122 178 215 219 223 227
Exhaust 70 cc 52 97 133 156 170 176 180
Valve Diameter Intake 2.00"
Valve Diameter Exhaust 1.55"
Part Number 12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
hope this helps.
As long as the 5.3 heads meet these specs or exceed them you should be fine but if there lower then go for a set from Texas Speed or anyone else who has a nice set of alumnuim heads for a reasonable price.
Chamber 66.67 cc 0.100 0.200 0.300 0.400 0.500 0.550 0.600
Intake 200 cc 67 122 178 215 219 223 227
Exhaust 70 cc 52 97 133 156 170 176 180
Valve Diameter Intake 2.00"
Valve Diameter Exhaust 1.55"
Part Number 12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
hope this helps.
As long as the 5.3 heads meet these specs or exceed them you should be fine but if there lower then go for a set from Texas Speed or anyone else who has a nice set of alumnuim heads for a reasonable price.
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if you wanna stick with stock heads, the 5.3's would be a good option IMO. are you looking for ported heads or just something to get the car driving? are the pistons still good?
#6
Valve Diameter Intake 2.00"
Valve Diameter Exhaust 1.55"
and you should be good. Air flow is vital. No point in having higher CCs if you cant fill your combustion chamber with air or get nearly all of the exshust fumes outta your combustion chambers
But dude in all honesty if its a daily driver get em for 200$s to last you for now. Also while your in there like the other guy said do another run over on your motor make shure nuttin else is jacked up to man