3rdCoastPowerSports

iTrader: (5)

241 heads,,,, i shaped all the exhaust ports (cut down the rocker boss and took out the bump). i just did some pocket porting i really didn't touched the walls or the roof of the exhaust port.... noticed the 243 heads have D shaped exhaust ports, should i do that with the 241 exhaust port? included some pics for ya'lls advice and thoughts.


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last one is a file photo of an unported exhaust. i used a carbide cutter to shape and then did a bit more shaping with 80grit rollers and then very quickly hit it with 120 grit rollers to make it look decent for the pics.

A.R. Shale Targa

iTrader: (2)

Those look decent, but do NOT drop the floor just to make it a D shape.
The 243s have the floor raised to create the D. Also leave the intakes
a bit rougher @ 80 grit when you polish.

3rdCoastPowerSports

iTrader: (5)

yeah i guess there good enough and nope im not touchen the floors, so i guess i wont D the exhaust port. as far as the intake is concerned do i cut half of the ramp out? ive seen some with the ramp removed but dam that seems like alot

A.R. Shale Targa

iTrader: (2)

I left mine alone but some make it more U shaped...don't know but it seems
the more people do in there the head flows more air BUT the general made
them that way for a reason(tumble and turbulance) so I stayed stock in the
bowl except a cartridge roll

Steve Gunn

Here's crappy pics of a cnc'd MTI 2E 241 port. I hope this helps...