80/TA/LT1

iTrader: (2)

Hey guys i'd like to hear from those who have installed gen 4 rods / pistons in a sbe gen 3 motor without rebalancing. I've read much debate on this, so i want to hear from those that did it (not speculation / opinions as the net is full of those )and how long your engine lasted or problems / regrets you had. Turbo engines are a plus I'll be running a 7875. Thx i'll be checking back frequently

truckdoug

iTrader: (26)

I've done it. Motor is still alive, but it's in my NA truck now.

Cwarta

iTrader: (12)

I’ve done it as well, both n/a and boosted. No issues related to an improper balance

pantera_efi

iTrader: (1)

Hi TA, SURE I OVERBALANCE OFTEN.

The "tech" here IS TO ALLOW UNDER BALANCE ?

Lance

truckdoug

iTrader: (26)

lance i gotta ask, is your caps lock button damaged? it seems to toggle on and off and random times.

to OP:

most of the weight difference is in the piston and pin between gen 3 & 4. gen 4 piston and pin was ~6 grams heavier each in the "iron L33" i put together.

the piston, pin and small end of the rod reciprocating weight is only counted at half it's actual weight towards the bobweight. so 1/2 reciprocating weight + rotating weight = bobweight.

if it were a road race or oval track car, yeah overbalance that thing.

if it's just a fun drag strip blaster on the cheap...let 'er rip 'tater chip

80/TA/LT1

iTrader: (2)

Thx for the input guys, i appreciate it, ive been following both of you for a while now on here and youtube, learned alot from you guys.

Anybody else ???