Jasper Engines & Transmissions 643 Hanley Industrial Court, Brentwood, MO 63144

"It seems they never have the engines we looking for. I engines we have use are 100%"

"Run fast from Jasper. Got a Jeep 3.8 motor, just under 20k miles and it sounds like it's about to fall apart. A 3.8 is a hammer simple engine, how do you mess this up?!"

"What a joke. I have a 2011 Dodge Durango. Had the original replaced with a jasper hemi and it blew within the 3 year warranty. The replacement blew in 2 years and 2 years to the day that one blew. Wouldn’t honor warranty. They told me and my mechanic that the valves on this motor won’t bend and u should just be able to change timing. They lied. Not only am I out a vehicle but my mechanic is out the money for changing the timing at their recommendation. Would never ever recommend these clowns for anything. How some people can sleep at night knowing they are screwing people over is beyond me!!"

"NEVER AGAIN!!!! I bought a rebuilt 4.0 Jeep motor from Jasper and after 37,000 miles the head cracked and it was 5 months past the warranty and they would not pay for any of the repairs and it cost me over $1300 to fix it. The original motor had 330,000 miles on it and never had a problem with the head."

"Okay so first off ive had 3 jasper engines put in my 2003 nissan 350z. 1st motor had a timing issue at 200 miles, jasper replaced. 2nd motor had about 32k again another timing issue...(timing chain tensioner). Got my car about two weeks ago, 3rd motor installed. 1,247 miles later. Multiple cylinder misfire. Not only are these motors junk but the company only pays for so much labor wise. You would think with the ammount of bad luck ive had they would cut me some slack but no they dont work that way. By far worst customer service ever as well as the worst motor ever. Theres 16 year olds banging gears out of the oem VQ35DE and im out here granny shifting and having nothing but trouble with their motors. Save your money and go to a junk yard. Im sure any salvaged motor would be more reliable than these motors. 10/10 would never recommend."