L33 H.O. 310 HP 5.3 =
Aluminum deep skirt 6 bolt main block.
LS6 heads cast number 799.
Flat top pistons w\teflon coated skirts & floating wrist pins.

RPO RPO
LM7 L33

VIN VIN
T B
Compression Ratio Compression Ratio
9.49:1 9.9:1

Camshaft Lobe Lift - Exhaust Camshaft Lobe Lift - Exhaust
6.96 mm 7.2 mm
0.274 in 0.283 in

Camshaft Lobe Lift - Intake Camshaft Lobe Lift - Intake
6.82 mm 7.2 mm
0.268 in 0.283 in

Valves - Valve Lift - Intake Valves - Valve Lift - Intake
11.58 mm 12.24 mm
0.456 in 0.482 in

Valves - Valve Lift - Exhaust Valves - Valve Lift - Exhaust
11.82 mm 12.24 mm
0.465 in 0.482 in

 

i thought L33 was only in the excab???? what was the vin code to tell if you had one?

 

"B" in the 8th position.

 

The eighth number in the VIN is a "B" for the L33 and a "T" for the LM7.