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head porting 120-130

posted by  mario_e on  Fri Oct 11 15:09 CST 2002
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last visit: Wed Sep 17 06:43 CST 2008
[RELATED]

As part of the rebuild I'll be cleaning up a B20F head. This will be used with possibly a mild cam Isky VV61, VV71 with advance key, or just a new factory grind (possibly also advanced). Want the torque curve on the lower end, don't care about 5500+ RPM. Its a city car.

Will be getting a three angle valve grind, considering 37mm exhaust valve.

Anyhow I would like some input as to what to address in porting Volvo heads. As I said I'm not building a fire-breathing 7000RPM racer but want to increase efficiency as much as I can without killing my low end response.

Anyone have experience with this?

Thanks.

Mario E.






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