Machine work for engine efficiency

[frankendat]

[EDM620]

On 4/19/2024 at 12:41 PM, frankendat said:

smooth edges/gasket match

Matching up your ports on both sides of the gasket will certainly improve airflow. Polishing the ports is helpful as well, take your time and go slow.

[frankendat]

[frankendat]

All angles 45--I understand :)

[datzenmike]

Steeper angles up to 55 degrees have been used for competition as there is less of a bend going past the valve but it doesn't wear very well and needs regular disassembly and maintenance. 45⁰ is the accepted norm for all production.

 

Didn't Dodge have some at 45.5⁰/45⁰ ???? way back in the past? 

[frankendat]

On 4/22/2024 at 7:18 AM, datzenmike said:

Steeper angles up to 55 degrees have been used for competition as there is less of a bend going past the valve but it doesn't wear very well and needs regular disassembly and maintenance. 45⁰ is the accepted norm for all production.

 

Didn't Dodge have some at 45.5⁰/45⁰ ???? way back in the past? 

Dunno, the Dodges I find worthy might fill one hand.

 

Valve seats are back ordered everywhere, so I ordered some custom cut out of inconel (there are many available that are really close and the custom cut to match the specifications necessary for the KA24E was a $4 charge)

 

The project marches on!

[datzenmike]

I think the 45.5 valve and 45 seat would allow quick wear in and seating. This would have been in the '60s when my dad bought a Dodge Polara and that's all I ever thought about.