Jegs sells SB chevy crate engines made by BLUEPRINT. I called and spoke with a sales tech that said they are seasoned blocks bored up to .040. He also said they are assembled by a parent company called Marshall engines (I think). These engines are reasonably priced and equipped with some decend parts. I'd appreciate some input on these engines if any of you tried them out? I'm wondering of quality and reliability on these engines? I'm kinda concerned about a block being bored .040. Thanks in advance for any input.

 

i bought the base 355 and i havent had any problems.i also switched cams to a comp cam 268 xtreme energy.motor is strong with msd 650 speed demon carb it has a nice air gap intake

 

ive heard nothing but good things from them on horsepower tv. i plan on getting a dressed 383 motor. 410 hp and redy to drop in for under $5k

 

Odds are if it is coming from Jegs then it is well worth it. If you are that worried then the GM performance parts motors are justa litle more. But they are for motors with less Hp. I would still have to think that if Jegs is sellin them then they have to be good.