4.8 pistons on 5.3 rods
06-08-2009, 08:29 AM
#11
Nope
That's an old thread, another one of the GM parts counter guys on here looked it up a while back and the 4.8 and the L33 5.3 pistons are the SAME part number... I believe the L33 is 9.9 comp. 
it has been stated that they are not in different locations. i am searching right now to see if the pistons are indeed the same part number between the l33 and 4.8. i did find this but, it ends in a pissing match and nothing gets resolved. it starts on post 10.
https://www.performancetrucks.net/fo...d.php?t=421686
https://www.performancetrucks.net/fo...d.php?t=421686
06-08-2009, 05:37 PM
#19
I am researching 
... I can't be without my truck for long cause I sold the beater, so i would need the motor ready to go once the 4.8 is pulled.
I am looking at car-part.com, i can get a complete low mileage 5.3 for ~500... I would guess all i would need is some 4.8 pistons, rings, head gaskets and bolts....
... I can't be without my truck for long cause I sold the beater, so i would need the motor ready to go once the 4.8 is pulled.I am looking at car-part.com, i can get a complete low mileage 5.3 for ~500... I would guess all i would need is some 4.8 pistons, rings, head gaskets and bolts....
06-08-2009, 06:11 PM
#20
I've wanted to try this for a long time but people would always tell me that they were'nt compatible, but then i saw that 5.3 engine with the TFS 205 and it stated that they had done that, so that proves that it can be done. I'll try to get ahold of some 4.8 pistons so that i can try it.