03sierraslt

iTrader: (22)

Ask them.

Go5.3tt06

iTrader: (1)

Ask what. I already asked Dustin from Thompson. Also I have hard time to find a replacement coolant crossover o ring rubber. Not plate rubber. Just need O rings that I need it. I keep look around on eBay they sell whole kit with pipe which I not need it. I only need o ring

03sierraslt

iTrader: (22)

Why they say not to run synthetic. Do they mean period or just for break in?

Go5.3tt06

iTrader: (1)

They say no sythenic forever. That's why I'm confuse. Anyone who have forged engine run sythenic ? What weight??

George C....

Do a search before you buy one of their motors.....

1FastBrick

iTrader: (17)

12602541 O-ring crossover seal.

12551933 Is the plate rubber type crossover seal.

62nalide

iTrader: (1)

aint that the truth

zero2sixT

iTrader: (4)

Every builder has some bad reviews. Few ppl on here and yb making good power with their engines. Saw some threads where they stood by their product. I just think their pricing is a little high for a budget boost engine.

Op they prob just don't want to take a chance with the low additives in the syn oil. If you want to run syn oil, I'd include a bottle of the zync additive. Although, I would and do run diesel engine oil.

Go5.3tt06

iTrader: (1)

I been research for one year before decided buy engine from thomspon motors. Some people from here bought from them. Thought it was good and reasonable price?

62nalide

iTrader: (1)

Look on ls1tech how many are popping up with issues
Been screwed 3 times by them