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Z10 · 12-10-2013, 12:15 AM

F.I.R.S.T TPI Manifold and ZZ4 Head Mismatch

We ran into a bit of a mismatch with the F.I.R.S.T TPI intake manifold and the aluminum heads on the ZZ4. The ZZ4 heads have a protrusion that interferes with the intake seating properly. Car Boss and I have another friend who owns a machine shop, He machined enough off for the intake to fit properly. So, for those of you contemplating using this intake on a ZZ4, be aware that you'll need to make this modification.

12-10-2013, 12:15 AM	#81
Z10 Registered User Join Date: Aug 2012 Location: Midland, TX Posts: 1,267	Re: 72 GMC Short Step Build F.I.R.S.T TPI Manifold and ZZ4 Head Mismatch We ran into a bit of a mismatch with the F.I.R.S.T TPI intake manifold and the aluminum heads on the ZZ4. The ZZ4 heads have a protrusion that interferes with the intake seating properly. Car Boss and I have another friend who owns a machine shop, He machined enough off for the intake to fit properly. So, for those of you contemplating using this intake on a ZZ4, be aware that you'll need to make this modification. __________________ 1969 RS/SS Z10 Camaro Pace coupe 1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218 1979 Mazda RX7 1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary 1999 Honda Valkyrie 2006 Corvette Z06 2010 BMW 650i Last edited by Z10; 12-10-2013 at 12:21 AM.