Shaved it a bit much, didn't you? I see the valve extending past the deck.Anybody can guess?
You get a cookie!I was reading last night something about 30* seats??
New style valves for the seats?
You get a cookie!
I Home ported my 302 heads...see previous posts... an in an attempt to increase CR.. I did something completely different...
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What I see, I don`t like for sure .All good advice.... I’m not looking to win races or make this project into a dyno queen... I’m experimenting so I can learn and have first hand experience... best part is I will share my success or failure here... I often take the path least followed... which is why I’m a Mopar fan... and Oldsmobile fan...
Let me get this right. You stuck the valve head up into the combustion chamber to increase the compression ratio? That was your big idea? I guess you could weld flat washers and nuts onto the valve heads also. That'd jack the compression up too.
Let me get this right. You stuck the valve head up into the combustion chamber to increase the compression ratio? That was your big idea? I guess you could weld flat washers and nuts onto the valve heads also. That'd jack the compression up too.
Flow window.....and stable air flow....You relieved the chamber below the seat, unshrouding the valve.
If you pick up too much velocity, it'll take the rest of the bowl with it..beeeeee carefulllllllll
Low rpm engine making torque and reliability, is a whole other thing.international truck gas engines all used a 30 deg intake seats but had a very large head chamber to work with the seat there was no way the valve could be shrouded a 304 2 barrel engine used a 2.02 intake valve
Again... I'm just experimenting; doing what everybody is doing or what everybody tells you should do...isn't innovative.
I'm almost ready to get this beast running and so far no issues with clearances.
There are certainly two opinions on using #302 heads. I subscribe to neither.
My goal is taking this heavy Chrysler 5th Ave(#3780 lbs) with advertised HP rating of 140 and a 1/4 Mile time in the high 17 second to a #3450 lb(Currently) HP rating of ~275 and a 1/4 Mile in Mid to Low 14's.
Wish me luck....
Using different valves, bigger will generally always raise compression a lil. The main thing here is they won't make a torque monster 'relatively speaking' unless they flow what a 360 head flows.
You want velocity with flow, not just velocity.
A factory 340 made what, 340 ft lbs of torque?
Make 318/273 heads follow with what some 587/915 castings flow and it can make 40 lbs more tq.
Again... I'm just experimenting; doing what everybody is doing or what everybody tells you should do...isn't innovative.
I'm almost ready to get this beast running and so far no issues with clearances.
There are certainly two opinions on using #302 heads. I subscribe to neither.
My goal is taking this heavy Chrysler 5th Ave(#3780 lbs) with advertised HP rating of 140 and a 1/4 Mile time in the high 17 second to a #3450 lb(Currently) HP rating of ~275 and a 1/4 Mile in Mid to Low 14's.
Wish me luck....