Bracket Talk
SR20 or Headhunters

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/4017084296

February 01, 2020, 05:14 PM
Holytown
SR20 or Headhunters
Looking to build a new 582 NA single carb. Any opinions on these two heads?
February 01, 2020, 05:41 PM
WHOMPWHOMP
I’ve had both of course the sr20 are faster so why not....
February 01, 2020, 06:00 PM
Holytown
Is the extra ET worth the price difference? Looking to go low 460 in 1900 lb dragster
February 01, 2020, 06:18 PM
jimmyc
Low 60s better be a stout 582. If it’s a new build why not go bigger
February 01, 2020, 06:20 PM
Holytown
Just would rather have 4.375 stroke rather than 4.75
February 01, 2020, 06:31 PM
jimmyc
4.5 then make 598
February 01, 2020, 06:53 PM
Holytown
Should have clarified. I’m trying to stick with 4.375 stroke
February 01, 2020, 07:20 PM
gxp7903
is this in denvor nc or denvor co? co will be real tough with a 582!

Id go with sr20 if your willing to run gas. you'd need a stout 582 with HHs to run low 60s at 1900lbs imo.
February 01, 2020, 07:24 PM
Holytown
I currently live in Denver but moving to North Carolina. Raleigh durham area in July.
February 01, 2020, 07:32 PM
Big Steve
This would be my choice, bad ass cylinder head and they have all the valve train geometry worked out so it is extremely reliable

https://rehermorrison.com/prod...tor-2-cylinder-head/
February 01, 2020, 07:40 PM
Holytown
I got a good feeling those might be too rich for my blood
February 01, 2020, 07:52 PM
sittin duck
I put a set of 18 degree Brodix on my 582 it went 4.63 @ 150 my car is 2070 going down the track.
February 01, 2020, 07:59 PM
Holytown
Big duke?
February 01, 2020, 08:00 PM
sittin duck
Yes
February 01, 2020, 08:09 PM
AlkyIROC
Sorry, Conventional 24.5 heads on my 588. I use a 4.375 stoke to get 588 out of a short deck block.

I think if I was going to build another 588, I'd go straight for an SR20 build.


www.hardtail.com Stephen's Racing Page
Best ET: 9.029
Best MPH: 150.45

February 01, 2020, 08:12 PM
Holytown
What did it run and @ what weight?
February 01, 2020, 08:35 PM
WHOMPWHOMP
My 582 HH went 4.50 at 1845...
February 01, 2020, 08:41 PM
Holytown
What compression and cam did you run? Also what carb setup and did you run a vacuum pump?
February 01, 2020, 10:42 PM
WHOMPWHOMP
15.75...2.400 carb...vacuum pump why yes
February 02, 2020, 09:04 AM
Cashflow
Look up the video on the X-20 head. If I were doing a conventional head that’s what I would build. Good luck with whatever you pick!


Clowns to the left of me, Jokers to the right. Here I am.......