New JetManiac 781 Engine

[SmittySX]

New JetManiac 781cc shortblock. Never fired. Thrust high comp head with carbon inlay running 185psi.

Please message me and leave your number as I’m not on here much.

Serious inquires only

 

[Rowdogg50]

Any pics of the intake porting?

 

[Brett Roman]

Great Motor. Great Seller.

I have one of these motors, they are bullet proof. JM can help out with jetting and propping as well.

Sent from my SM-G975U using Tapatalk

 

[MADMAT]

Oh man that is friggin sick......

 

[zyxwvu44]

Mine lasted 4 years before first rebuild, good motors

Sent from my SM-G975U using Tapatalk

 

[SmittySX]

 

[SteveC]

What is different with this one (obviously the head) compared to a JM BB motor that he’d sell today? What I mean is, are there any other differences?

 

[SmittySX]

What is different with this one (obviously the head) compared to a JM BB motor that he’d sell today? What I mean is, are there any other differences?

This is the same of JetManiac’s big bores he sells today... just with a fancier head.

 

[SmittySX]

Sold.