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rework head

1230 Views 2 Replies 3 Participants Last post by  mike d
what benefits would i gain if i bore out the intake/exhaust ports on a used head. i found plenty of 2.1 heads at a local yard and dont mind getting my dremmel tool out. also what could i do with the intake manifold? i have a 91 900 non turbo with a 2.1 head . it has a mss header/mss rebuilt exhaust/straight thur cat/bored out throttle body/and k&n air intake with ram air thanks for advice
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What about applying a light pressure turbo?
you could LPT it, or try porting out a 2.0 head to fit a 2.1 mani

the 2.0 heads have a smaller chamber, this making more compression
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