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Hey im new registering here. Im getting a 65 Stang with a 170 from a 68, a 67 3 speed, and a 67 rear end from an automatic. Im not reall sure what I am gonna do with the car, probably drop the engine and put in a US 250and put on an aussie 2v head , eventually add a turbo. I could use advice on what turbo to use and on what to do the engine in prep for adding the turbo.[/quote]
 
You've come to the right place. I've learned alot of stuff since I've joined. A cool group of people are happy to help. See ya around...ZZ
 
8) using the stock head, i would recomend the T03 turbo from an early svo mustang or tbird turbo coupe. with the aussie head you can use a T04 turbo. engine prep for the street should consist of;
1: good rod prep. polishing the beams to remove stress risers and then shot peen them for added strength.
2: best piston would be forged, but a high quality cast piston will also work as long as the rpm is kept under 6000-6500.
3: get the crank as straight as possible, and the journals as round and polished as possible.
4: balance the rotating assembly.
5: get the cylinder bores round and straight. have the machine shop use a torque plate when doing the final honing. specify smooth bores for moly rings.
6: select a cam that, for the street, is fairly mild as the turbo will make the mid and upper rpm power. you want torque in a turbo motor to minimize turbo lag.
7: select premium components re: bearings, timing chain and gears, rings, pistons, gaskets(especially the head gasket), etc.
8: keep your compression ratio at about 8.5:1, 9:1 max on pump gas.

there is no need to blueprint a street engine. as for the head prep, clean up the ports to get rid of any large bumps, keep the surface a bit rough though to prevent gas puddling, and use stainless steel valves as the will take the heat better.
 
Im not really sure what the engine came out of. Im also not going o use the stock head. And i was already planning to swap to a T5. Thanks
 
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