My Peanut Port BBC 467 Engine Build

[Vortecpro]

My goal was to build a smooth idle 9.3 compression 467 BBC with peanut port heads (236 castings) then put it in my 1968 Chevelle for a drag test, yes a real drag test. Some pictures as the build went along. The center piece of my build, notice the symbol.........that sure isn't a hump there!

[Vortecpro]

Some more pictures of the completed rods, GM 3/8 press fit. The 236 peanut port heads assembled.

[COPO_Anders]

Do you have a picture of your "236" heads before the combustion chambers were worked on ? I looked at my "360" heads today and the combustion chamber looked a bit smaller om mine.

[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]

[Vortecpro]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO_Anders</div><div class="ubbcode-body">
Do you have a picture of your &quot;236&quot; heads before the combustion chambers were worked on ? I looked at my &quot;360&quot; heads today and the combustion chamber looked a bit smaller om mine.

[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] </div></div>

Here you go.

[COPO_Anders]

Thank´s for the pic of the combustion chamber. It looks similar to what I have on my &quot;360&quot; heads. [img]<<GRAEMLIN_URL>>/smile.gif[/img]

[Vortecpro]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO_Anders</div><div class="ubbcode-body">
Thank´s for the pic of the combustion chamber. It looks similar to what I have on my &quot;360&quot; heads. [img]<<GRAEMLIN_URL>>/smile.gif[/img] </div></div>

The chamber is the same as a 236 but 360s have stellite exhaust seats.

[VintageMusclecar]

Any pics of the finished intake ports?

Just curious--have you ever tried working a set of &quot;820&quot; heads? They have a relief cast in the chamber by the exhaust valve similar to yours

(pic snagged from the internet)

[Vortecpro]

Yes, I have used them, Its actually a similiar chamber as a 215 or 063 or 290 with that cut out behind the valve.

[earntaz]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Vortecpro</div><div class="ubbcode-body">Yes, I have used them, Its actually a similiar chamber as a 215 or 063 or 290 with that cut out behind the valve.</div></div>

I've used the 063s -- made good power for a first half-a$$ed open chamber design ... FWIW I am still running these heads with porting similar to Sissel (spell) mods ... TAZ

[COPO_Anders]

This will be interesting. I have a late 80´s motorhome 454 with peanut port heads that I´m going to use in my 1974 Corvette. The engine is like new inside so there is no machining required. I´ll put an aluminum intake on it but haven´t yet decided on which camshaft to use.

Keep it coming !