That's with 2 different gauges? . . . sorry to ask stupid questions. It's just unusual that there's no scoring at all and your getting those readings. They must be out of round, but all 6???? I'm really curious.

Bigshrimpin, you're curious and I'm dumbfounded. I'm going to go at it again later on today and hopefully take some pictures to post. Again, overheated at high RPMs and I stopped because I saw smoke coming out of the motor. Took the covers off and the temp. sensor (the rubber part) was melting. Motor never started again. Also it will help you guys tell me if it's a 2.4 or 2.5. By the way, are they interchangeable?

2.5 weren't around until 1992 and they replaced the 2.4L motors. You've got an vertical reed old chrome bore 2.4L 200hp with the headbolts on the cylinder walls. Many parts are interchangeable on the motors. You can put a 2.5L or a 2.0L powerhead on a 2.4L midsection. The one exception is the early 175 2.0L . . . which has huge open exhaust ports.

I tried the oil on the cylinder trick and the compression when up to about 75 psi, so I'm selling the motor on Ebay. Since my original motor blew a rod out the side and they sold me a rebuilt powerhead, I'm not sure if it's a 2.4 or 2.5. What do you think?
Attachment 427

Attachment 428

Attachment 429

That's an old school 2.4L with a horizontal front. The diamond shaped 2pcs heads only fit blocks with head bolts on the cylinder walls . . . so the block is 82 or earlier. That airbox will only fit on a horizontal intake which means it's a 2.4L V225 or a 82 v200. Spark advance modules are gone too.

The carbs are 1980 or later . . . the enrichener is the newer style.

http://www.wellcraftv20.com/gallery/.../Image1_32.jpg

Item number: 320277524304 on ebay.