335 HP 396 290 Head Casting Build & Dyno Test

goinbroke2 · 05-29-2024, 10:46 PM

If you don't mind sharing, how wide is the seat and how wide are the other angles?

Thanks

HP HUNTER · 05-30-2024, 04:18 PM

Quote:

Originally Posted by goinbroke2

If you don't mind sharing, how wide is the seat and how wide are the other angles?

Thanks

The intake seat is .045 wide, The exhaust is .065 wide, I will have to measure the other angles widths and get back to you.

goinbroke2 · 05-30-2024, 04:59 PM

Hmm, narrower than i thought. I kept exh seat a bit wider to help heat dissipation (.070)
And then I did the same for intake (.070) and the others were kept to whatever it took to put the seat (45) where i wanted it so the 30 and 60 vary from .030 to .07.

Am i on the right track or did i mess up?

HP HUNTER · 06-06-2024, 11:14 AM

Quote:

Originally Posted by goinbroke2

Hmm, narrower than i thought. I kept exh seat a bit wider to help heat dissipation (.070)
And then I did the same for intake (.070) and the others were kept to whatever it took to put the seat (45) where i wanted it so the 30 and 60 vary from .030 to .07.

Am i on the right track or did i mess up?

Can you post a picture? I don't think I'am qualified to answer that question, .005 extra width on a seat I wouldn't think would make or break you.

goinbroke2 · 06-07-2024, 09:45 PM

Certainly more qualified than me! I have a bunch of pictures i have to resize then i?ll post but be ready to be not impressed, lol.

Learning a lot following threads like this!

Chipper Chapman · 07-01-2024, 05:11 PM

This is the combo I use in my Chevelle. I?ve been working it at a few years and have it down to 330 in that body with automatic. I believe it?s 335-340 in Camaro/nova still

Larry Hill · 07-01-2024, 07:53 PM

Lots of ways to go fast!

05-29-2024, 10:46 PM	#1
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,631 Liked 393 Times in 153 Posts	Re: 335 HP 396 290 Head Casting Build & Dyno Test If you don't mind sharing, how wide is the seat and how wide are the other angles? Thanks __________________ Jim Miller 103 U/SA

05-30-2024, 04:59 PM	#3
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,631 Liked 393 Times in 153 Posts	Re: 335 HP 396 290 Head Casting Build & Dyno Test Hmm, narrower than i thought. I kept exh seat a bit wider to help heat dissipation (.070) And then I did the same for intake (.070) and the others were kept to whatever it took to put the seat (45) where i wanted it so the 30 and 60 vary from .030 to .07. Am i on the right track or did i mess up? __________________ Jim Miller 103 U/SA

06-07-2024, 09:45 PM	#5
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,631 Liked 393 Times in 153 Posts	Re: 335 HP 396 290 Head Casting Build & Dyno Test Certainly more qualified than me! I have a bunch of pictures i have to resize then i?ll post but be ready to be not impressed, lol. Learning a lot following threads like this! __________________ Jim Miller 103 U/SA

07-01-2024, 05:11 PM	#6
Chipper Chapman Member Join Date: Jan 2004 Location: Belmont N.S. Canada Posts: 473 Likes: 246 Liked 166 Times in 71 Posts	Re: 335 HP 396 290 Head Casting Build & Dyno Test This is the combo I use in my Chevelle. I?ve been working it at a few years and have it down to 330 in that body with automatic. I believe it?s 335-340 in Camaro/nova still __________________ Chris Chapman 1969 Chevelle NHRA F-G/SA 1090

07-01-2024, 07:53 PM	#7
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,644 Likes: 1,941 Liked 10,736 Times in 2,234 Posts	Re: 335 HP 396 290 Head Casting Build & Dyno Test Lots of ways to go fast! __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817