I'm putting together a 2001 5.3L truck motor to go into an off road Jeep type tube frame buggy. Eventually, I'm going to add some cubes, but for now here is a list of what I have:

stock 5.3L assembly
LS6 intake
LS1 cam (need to check on the year)
short tube headers (no room for long tube's)
"yellow" GM valve springs
hardened push rods
ported oil pump
LS2 timing chain
Modified wiring harness
Programmed PCM (tune TBD)

The transmission is a built TH350 with a full manual reverse valve body and 2200rpm stall converter.

With this combo, what is a safe setting for the PCM rev limiter? I'm thinking that having it set to the stock LS1 setting of 6200 would be OK, but I don't want to blow the motor or leave usable rev's on the table.

Thanks for the help!

 

ive had my stock 4.8 to 6200

 

mine goes to 6900 5.3, ls6 intake, 228 cam, full bolt on, and a 3800 satll and 4.11 gears and it does not hesitate

 

Do you have upgraded rod bolts? That's about the only thing I'm missing. I started to go to ARP rod bolts, then found the possible issues if the rods aren't resized/rebalanced. The other aftermarket bolts are pretty pricey at $200 for a set...

 

My limiter is set at 6900 also. I'm running stock rod bolts and have been shifting at 6500-6700 for 3+ years and over 60,000 miles.