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Old 07-06-2018, 06:21 PM
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Join Date: Jun 2018
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Advice needed!

I have a Jeep YJ and looking at doing my first Diesel Swap Im thinking about using a company called Big Bear Engine Company out of Denver, CO. These are the only guys Ive heard of that offer the complete drop in packages. Ive heard some guys have used Jasper Engine before but Im not sure what type of quality they offer. What about Reviva in Minneapolis?

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Old 07-28-2018, 12:05 PM
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anyone have any info on these guys by any chance?

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Old 07-28-2018, 10:08 PM   #3

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WoW that is one heavy engine! I've used jasper before for gas performance engines and have had good luck. Good luck with your swap and keep us informed on how it works out.
4.2L Auto, 2150,GM HEI, Posi-lock, 4"ProComp Lift, 31.5x10.5x15, JB SYE,Adams CV driveshaft, Lokka locker front, LSD rear 3:55
Jeep #2 1989 yj 4.2 5 speed, RC 4" lift w/nitro shocks, sway bar disconnects,35x15x12.5WranglerMTR
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Old 07-30-2018, 06:29 PM   #4
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I also have been pleased with the Jasper engines.
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