I do agree, I found that back angle helped the most on a ported Olds cast iron head. Chevy, Ford, and Mopar it hurt. All I could figure it liked the valve angle on the Olds.
Looking forward to seeing this car in action. S.E.G.A. is some of the best drag racing on earth . I met you guys at the Cracker barrel in Birmingham earlier this year. This was my second time to attend the gasser drags and can't wait to go again next year. Good luck with this project...
That’s an interesting way of doing a girdle with the welded pan rail supports. Is that something you did or somebody else’s work. Haven’t seen welded before, always one piece or bolt together in the past. That also looks like maybe a 455, boat motor?
^^^ like silverjimmy says, curious to see oil pan welded up so no leaks at the step join over brace. Suckers always want to leak anyway
This engine is going in a 55 Olds gasser out of Texas. The girdle set up is one of Dick Miller's parts. It's not too bad a looking part. I'm curious to see how it works out!
It's been a while since I've posted. Plugging away at the paying jobs. Finally have the 455 finished. Heading to the dyno in 3 weeks.
Hell yea, keep those rockets flying. I started this one and havent touched it in a year, plan to get back to it in Feb.
Got any theories WHY back cutting valves on Ford stuff it hurts?.... You certainly would know more than me. 6sally6
The angle that I use on the Olds hurt the flow on a set of Ford heads I did yrs ago. Best I can remember I changed the back angle to something a little steeper and they picked back up. Sorry for not making myself clearer. I know there's a lot of variables to make a head flow. Port design, runner CC's, air velocity. Valve shape and angles. Even the seat angles. That's the reason they make so many different shaped cutters.
The mold that has already made is for a 55. The one for the 56 will be started this month. I've got no clue on how long the process takes. I do know they are having to get the metal cap worked out before the mold can be started.