Editing V6 Chevy 90 degree engines (section)
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===Marine intakes=== There are several marine intakes, both for the Rochester 2G-type 2-barrel and the Q-jet spreadbore and Carter squarebore (uses an adaptor) 4-barrel carbs, all cast iron. In fact the only aluminum intake for the V6 Chevy 90ยบ is a 2-barrel single plane(!) piece that was used for several years on the 200 and 229 cid engines. Not a performance-oriented part, it has a bolt pattern for the Dualjet (basically the front half of a Q-jet), which means no other carbs will fit it and there are no adaptors, either. Marine intakes have either the traditional 12-bolt pattern (200/229 and pre-1996 4.3L) or the 8-bolt Vortec pattern for 1996-present. The angle of the center intake mounting holes changed during 1987 to 72 degrees, same as the SBC. *p/n 14097284, Q-jet only, no EGR *p/n 14095286, squarebore only, used with the Carter carb *c/n 12552422, 2G 2-barrel intake [[File:Marine 4.3 L V6 1995-back non Vortec intake.jpg|thumb|left|1995-back non Vortec intake p/n 14097284]] [[File:'96-up 4.3L MARINE VORTEC INTAKE OPEN PLENUM, CAST IRON.jpg|thumb|300px|right|4.3L marine Q-jet cast iron single plane intake for the '96-up Vortec heads]] {{Clear}} [[File:4.3 L V6 MerCruiser Alpha One Generation Two Vortec Intake w- 2 barrel carb c-n GM 12552422.jpg|thumb|left|350px|1996-up 4.3 L V6 MerCruiser Vortec dual plane intake for 2 barrel carb, c/n GM 12552422]] [[File:1993 Mercruiser 4.3 LX V6 SQUAREBORE INTAKE P-N 14095286, CARTER CARB -339196005.jpg|thumb|center|300px|1995-back Mercruiser 4.3 V6 squarebore p/n 14095286, Carter carb 339196005]] {{Clear}}
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