SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: BOOST on October 25, 2009, 02:07:46 PM

Title: BBC heads
Post by: BOOST on October 25, 2009, 02:07:46 PM

   I have a set of heads  14096188 rect port open 116 chamber question is will these work good on a mild built 454 about 550 hp. here's the cam that will be use .567 lift 328 duration.

Title: Re: BBC heads
Post by: GT Jets on October 25, 2009, 02:10:14 PM

Quote from: boost on October 25, 2009, 02:07:46 PM

   I have a set of heads  14096188 rect port open 116 chamber question is will these work good on a mild built 454 about 550 hp.

Thats nice.    :-\                                               :D

edit; mis-read sorry...

Any rectangle port heads will work on a mild build, but.....combustion chamber shape and size by itself don't mean anything without the proper piston dome shape. Right heads wrong piston can spell disaster for any build. I always recommend buying pistons to match the head, not the other way around.

The only thing I don't like about rec. ports is the RPM range they like to see (IMHO not worth a damn under 4000 RPM)....

Title: Re: BBC heads
Post by: SLCKREG on October 25, 2009, 02:12:48 PM

GT or anyone....are those the same as 990's??? Just curious?

Title: Re: BBC heads
Post by: BOOST on October 25, 2009, 02:15:07 PM

    Here's the cam that will be use .567 lift 328 duration, 1.7 rockers   :thumbup:   :thumbdown:  good heads or bad for the cam.

Title: Re: BBC heads
Post by: GT Jets on October 25, 2009, 02:25:45 PM

Quote from: SLCKREG on October 25, 2009, 02:12:48 PM

GT or anyone....are those the same as 990's??? Just curious?

Same as 990's and also should have a better seat design (later head). But I think 118 cc chambers on the 990's?

These are "service replacement" heads and make good heads for high RPM HP.... :thumbup:

If memory serves, they have additional accessory bolt holes in the ends. According to the GM bible.

GT

Title: Re: BBC heads
Post by: Just Electric on November 02, 2009, 08:36:56 PM

hey brian for all your cheby needs or info try this site http://www.mortec.com/bbc.htm

Title: Re: BBC heads
Post by: BOOST on November 02, 2009, 08:52:41 PM

Quote from: Just Electric on November 02, 2009, 08:36:56 PM

hey brian for all your cheby needs or info try this site http://www.mortec.com/bbc.htm

   Thanks Bro thats how i found out what heads they where great site been using  them for a couple years now. :thumbup:

Title: Re: BBC heads
Post by: Just Electric on November 03, 2009, 10:47:12 AM

well alrighty then