4.8 and 5.3 piston
10-08-2012, 08:55 PM
#21
10-08-2012, 09:44 PM
#25
I made 394 rwhp and 365 rwtq with my 5.3
I had stock bottom end, PRC 5.3 stg 2.5 heads, fast LSXRT 102 intake and nnbs tb. My cam was a 218/224 .605/.610 111lsa. With supporting mods as well. Long tube headers, even had a 3" cut out. Flex fuel injectors, walbro 255 with hot wire kit. Built 60e and billet 3400 torque converter. We tuned it on the dyno.
So to hit 450 to the wheels with a 5.3 that is a far stretch. You might be able to hit 400 if you go all out. Better heads, big 1 7/8 headers, LSXRt intake with 102 tb and a bigger cam. As far as dd goes my did pretty well, if you all out you'll lose your dd, and it would be more of a race truck. Dont go all out and then you will have a decent dd and you can just add your nitrous on the weekend when you feel like beating some F-body's and cobras
I had stock bottom end, PRC 5.3 stg 2.5 heads, fast LSXRT 102 intake and nnbs tb. My cam was a 218/224 .605/.610 111lsa. With supporting mods as well. Long tube headers, even had a 3" cut out. Flex fuel injectors, walbro 255 with hot wire kit. Built 60e and billet 3400 torque converter. We tuned it on the dyno.
So to hit 450 to the wheels with a 5.3 that is a far stretch. You might be able to hit 400 if you go all out. Better heads, big 1 7/8 headers, LSXRt intake with 102 tb and a bigger cam. As far as dd goes my did pretty well, if you all out you'll lose your dd, and it would be more of a race truck. Dont go all out and then you will have a decent dd and you can just add your nitrous on the weekend when you feel like beating some F-body's and cobras
10-08-2012, 11:11 PM
#28
I made 394 rwhp and 365 rwtq with my 5.3
I had stock bottom end, PRC 5.3 stg 2.5 heads, fast LSXRT 102 intake and nnbs tb. My cam was a 218/224 .605/.610 111lsa. With supporting mods as well. Long tube headers, even had a 3" cut out. Flex fuel injectors, walbro 255 with hot wire kit. Built 60e and billet 3400 torque converter. We tuned it on the dyno.
So to hit 450 to the wheels with a 5.3 that is a far stretch. You might be able to hit 400 if you go all out. Better heads, big 1 7/8 headers, LSXRt intake with 102 tb and a bigger cam. As far as dd goes my did pretty well, if you all out you'll lose your dd, and it would be more of a race truck. Dont go all out and then you will have a decent dd and you can just add your nitrous on the weekend when you feel like beating some F-body's and cobras
I had stock bottom end, PRC 5.3 stg 2.5 heads, fast LSXRT 102 intake and nnbs tb. My cam was a 218/224 .605/.610 111lsa. With supporting mods as well. Long tube headers, even had a 3" cut out. Flex fuel injectors, walbro 255 with hot wire kit. Built 60e and billet 3400 torque converter. We tuned it on the dyno.
So to hit 450 to the wheels with a 5.3 that is a far stretch. You might be able to hit 400 if you go all out. Better heads, big 1 7/8 headers, LSXRt intake with 102 tb and a bigger cam. As far as dd goes my did pretty well, if you all out you'll lose your dd, and it would be more of a race truck. Dont go all out and then you will have a decent dd and you can just add your nitrous on the weekend when you feel like beating some F-body's and cobras
