I found this intake manifold picture online, and am curious to know its Pn.

https://www.flickr.com/photos/69163769@N07/13733888465/

https://www.flickr.com/photos/69163769@N07/13734287914/

I have a L31 intake on Vortec heads making 300hp, i am hoping this intake will help promote my Hotcam and rocker upgrade.

I have Electronic TB, and MPFI, i hope to control the fuel with dynojet CMDM so no issues with fuel injection

that is a GM Ramjet

http://www.chevrolet.com/performance...m-jet-350.html

http://www.race-mart.com/GM_Performa...-12489371.html

Wannabe

Thats the street version, i need the marine version for i run in salt water

bump

NAF- That is not marinized by GM- you have to have the cooling passgaes coated yourself to for marine use.

Wannabe

I think I remember seeing it on some Indmar engine. Ck with them: http://www.indmar.com/company/news.aspx

Thanx Wannabe,

Do you know of any great products i can buy and have the water jackets coated with? I am not in the states so logistically i am at a disadvantage...

buy a closed cooling setup and run antifreeze in the engine. used big block heat exchanger will have all the cooling capacity u need. usually can be had for 500 or less.