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My inlaws are aging out and they are original owners of a mid 80's ~29' Dolphin with a 20R 4 cylinder engine. RV is in great shape with ~ 80 K miles.

The 4 cyl is so under powered that it struggle to go 60mph on level ground and you know the rest on uphill.

I'm sure someone has replaced the 4 cyl with a V6, I have seen similar Dolphins that were purchased new with a V6.

What is involved in removing the 4 cyl and replacing with a V6.

Thanks in advance,

Ron

 

 

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The engine compartment was wider in the 89 models compared to the earlier PU. The V-6 3vz has 150hp @ 4800 rpm and 180 lb ft of torque @ 3400 rpm

Plan B is to install a 2.7L 4 cylinder 3rz It has 150 hp @ 4800 rpm and 177 lb ft @ 4000 rpm. The T-100 PU is the donor of choice.

The "problem" is the intake and exhaust switched sides, but that's still easier than a set of duals.

 

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