4.3 with vortec heads [Archive] - The Donzi Registry

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smokediver

11-08-2001, 03:18 PM

I contacted holley and asked if they were going to build an intake for the votec 4.3. the reply from holley marine was they have no plans now and dont know if they ever will. anyone have any ideas other than the merc manifold?

MAXCAT

11-08-2001, 04:33 PM

GM performance parts makes one.
https://www.spoperformanceparts.com/
You can usually buy them through the dealer. Tha part number is 10134390

smokediver

11-08-2001, 05:22 PM

hey thanks alot for the info!!!

Blewbyu

11-10-2001, 12:02 AM

We went thru the hoops with Holley Tech to find if they made a manifold for the 5.7 Vortec.They couldn't find one and said "No".
Got hold of one of their V.Ps who knew his stuff-they do make one for the 5.7,and it is 97 and later,and quite different than the pre 97.Bolts are vertical rather than angled into heads.Get one of these and just whack 1/4 of it off! ;)