Building a motor for Free!

[zguitar71]

So I ran into a little luck recently. A friend and I were going to build an FP autox car but the shell we had was way too rusty. Before we discovered the rust, my friend bought (for $800) 2 motors, 1 set of wheels, 1 set of tripple Mikuni's with manifold and all the linkage and some other stuff from an old racing friend in California. So all the stuff came in this winter. He sold the wheels and make back $200. I striped the Z to a shell and discovered the massive rust (got the car for free) and we instead started to race his E Mod Z this year. So now the motor and stuff is just sitting there in his garage. I just got finished helping him install 2 motors in 2 trucks which he sold (we used my garage) so as a payment for my time and use of the garage he is giving me the motors and tripple he bought in Cal (I think I owe him some more for this).

The motors are a 2.4 and a 2.8. The 2.8 bottom end is balanced and .030 over with flat tops that are .457 m.m. above the deck, it was built for road racing (EP I think). It has never been used, brand new build, and now it will be in my car. The head I am going to use is an E31 shaved 1 m.m. with the chambers polished and all the sharp edges cleaned up and the ports are matched. The cam is a 270/280 durration 460 lift. And the Mikunis (which are going on the motor) are 40 m.m. with an SK manifold. I have measured the chambers on the head and they are around 41 cc's due to the milling so they are not very much smaller than stock but the kidney shape of the chamber is more pronounced now. With the smaller chambers above deck pistons .030 over and a 1.2 m.m. head gasket I should have around 11.25:1 compression. I am probably dreaming but I am hoping with the cleaned up and polished chambers and the altitute of Missoula I will be able to run Pump gas and not detonate. I hope to put the head and short bolck together this weekend. Eventually (when I have some $, I dead broke right now) I will fully port the head and put in a bigger cam. But for now I am happy to have a high compression 2.8 with tripples and a cam from the dished piston 2.8 with a bone stock E31 head and SU's, going from 8.6 to 11.25: comp will be fun.