I have a theory (check my logic)
Jul 15, 2007 | 03:36 PM
#11
Originally Posted by bluecajun5.3
doesn't the L33's have flat tops?
and according to the overview the L33 difference is in the heads not the pistons whereas the LS4 is the piston. the L33 is nothing more than a LM7 with an aluminum block, better heads, and a better cam.
Jul 15, 2007 | 03:40 PM
#12
Originally Posted by ZZebes
Well here is the catch 22 about that. according to gm's Powertrain website the L33 has lower comp ratio than the LS4 but higher than the L59/LM7
L33 has flat top pistons with larger cc 799 heads? (same as 243's)
LM7 has dished piston with smaller cc 706, 862 heads.
that's why both engines have the same cr.
Jul 15, 2007 | 03:40 PM
#13
You can do better with aftermarket pistons and rods. Not only are they stronger, but they'll be lighter and that translates to more power. You're going to have to pull out all the stops for this build. Pistons and rods are foundational items that are necessary to maximize power.
Richard
Richard
Jul 15, 2007 | 03:43 PM
#14
Originally Posted by bluecajun5.3
correct.
L33 has flat top pistons with larger cc 799 heads? (same as 243's)
LM7 has dished piston with smaller cc 706, 862 heads.
that's why both engines have the same cr.
L33 has flat top pistons with larger cc 799 heads? (same as 243's)
LM7 has dished piston with smaller cc 706, 862 heads.
that's why both engines have the same cr.
Jul 15, 2007 | 03:44 PM
#15
Originally Posted by ZZebes
Yeah i know beau, i'm putting the bitch on a diet 
but i really want to go after A/P's Record of 13.2 N/A which is the extended cab record. and my ego wants to dip into the 12's which i think i can as AP ran his record on stock heads and bottom end. or i could just give up and turbo the bitch since i have a nice turbo converter in already. 
but i really want to go after A/P's Record of 13.2 N/A which is the extended cab record. and my ego wants to dip into the 12's which i think i can as AP ran his record on stock heads and bottom end. or i could just give up and turbo the bitch since i have a nice turbo converter in already. I would just turbo it.... you will gain alot more horsepower and it will be alot more funner to ride in it... plus with the turbo you'll be faster than that record that you are trying to go after.... I dont think that all that work that you are trying to do to break a record is really worth it... thats just my .02
Jul 15, 2007 | 03:44 PM
#16
Originally Posted by Richard@WCCH
You can do better with aftermarket pistons and rods. Not only are they stronger, but they'll be lighter and that translates to more power. You're going to have to pull out all the stops for this build. Pistons and rods are foundational items that are necessary to maximize power.
Richard
Richard
Jul 15, 2007 | 03:46 PM
#17
Originally Posted by ap2002
in all honesty,
I would just turbo it.... you will gain alot more horsepower and it will be alot more funner to ride in it... plus with the turbo you'll be faster than that record that you are trying to go after.... I dont think that all that work that you are trying to do to break a record is really worth it... thats just my .02
I would just turbo it.... you will gain alot more horsepower and it will be alot more funner to ride in it... plus with the turbo you'll be faster than that record that you are trying to go after.... I dont think that all that work that you are trying to do to break a record is really worth it... thats just my .02
Jul 15, 2007 | 04:03 PM
#19
The L33 5.3L has flat top pistons and LS6 heads to make CR 9.9:1 The money spent swapping pistons/rings might be better spent on more cubes. I know you want the NA 5.3L title but how much is that worth to you?
Me personally I'd like to have the fastest street legal truck title....move over guys
Me personally I'd like to have the fastest street legal truck title....move over guys
Last edited by trever1t; Jul 15, 2007 at 04:10 PM.
Jul 15, 2007 | 04:40 PM
#20
Originally Posted by trever1t
Me personally I'd like to have the fastest street legal truck title....move over guys
but he may not count anymore since he's converting to 2wd and probably wont be street legal anymore
i think you should just try to use the L33 5.3L pistons and then mill some of the L33 (#799 i think) heads about .030 and go with that