Racingjunk Forums - 18 Degree Intake vs 23 Degree

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- - 18 Degree Intake vs 23 Degree (https://www.racingjunk.com/forums/showthread.php?t=28980)

I'd be curious to see the UN-corrected dyno #'s on that engine.

Quote:

Originally Posted by jmarksdragster

I'd be curious to see the UN-corrected dyno #'s on that engine.

I started to say something about that but deleted it. :roll: :roll:

Curtis

Quote:

Originally Posted by doorracer

Quote:

Originally Posted by cncmotorsports

Quote:

Originally Posted by jreiley

Don't the 12,15 and 18 degree heads use the same intake and exhaust.

12, 15 and 18 degree take the same intake
700 HP is easy with either 23 degree or 18 degree

I'm with Zip on this. 700hp with 23° heads is not "easy". If it were that easy for you guys I would be seeing a lot of CNCmotorsports sbc motors out there, because you guys could sell them cheap, and hearing a lot of buzz about them. Or at the very least you would be selling quite a few of those 23° heads you are using to do it. Not saying it can't be done just saying it ain't easy.

Curtis

If your end goal is 700 horsepower and you will never want to get more power, then a 23 degree will be expensive, if a chance exit that you will want more than that in the future, then 15 degree will be the ticket. Initial cost could be higher but, the power potential is far greater. Post your question on this forum http://www.yellowbullet.com/forum/forumdisplay.php?f=14 also if you search the post you will find a wealth of information.

Yedi

This part was edited after I saw Todds post deleted when I posted mine.

Todd, I've posted right behind two of your post tonight on different threads and by the time mine posted yours had been deleted.
You do that or somebody else do that?

I ran a BBC with 502 GM block, Eagle 4.25 crank (548ci), GRP rods, JE pistons 13.8 - 1, world products heads (not the best choice, but Curtis at RFD got 399 cfm out of one and 400 out of the other head), Comp cam, and a vacuum pump and made 868hp. Don't spend as much as I did on the heads, use eagle H beam rods and you could be at 700hp no problem within a decent budget. My motor ran for over two hard racing seasons no problems.

I deleted it after deciding it was off topic .

I suggested a 540-565 BBC based on EAGLE OR OHIO parts and a merlin or Dart block. 700-800 HP RANGE EASY for 10-12 k.Buy box stock heads from any of the good manufacturers and buy all the parts from a jegs catalog.

No Fancy high maintenance valve train. A big HP small block is very cool but they are more sophisticated and require more maintenance and know how.

any decent gearhead can maintain and tune an engine like I described

Gottcha. I saw it and replied to your post then it was gone.