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I am wondering what you guys think that my 5.3 will make to the tire. Here is my combination
lm7 5.3
ported ls6 heads
tsp224 cam- 224 intake 228 exhaust .600 lift 110 LSA
Fabricated intake
102mm throttle body
ls9 head gasket
arp head studs and rod bolts
holley water pump and alternator are only accessories
Headers shown in pic
going through a th400 with 3500 stall and 55 Chevy rear end
Last edited by Mark Pickel; 03-14-2021 at 11:03 AM.
250-270 depending on converter slip or how tight your converter is . 300 plus if you had a different transmission with a lock up converter. I usually see between 280- low 300 in trucks with similar combo on my dyno jet with a 4l60 with the converter locked.
Depending on the intake, if it's running okay 400, running well with all of the little power robbing things taken care of 450.
You have some good heads, add 10-15 degrees to the cam and a tunnel ram you can make 500 without too much trouble. Flywheel of course. 400 to the wheels.
03-13-2021, 08:58 PM
What HP will my 5.3 make 
