598 C heads

Go down

598 C heads Empty 598 C heads

Post  STR-LGL-70 on November 12th 2018, 10:08 am

So I'm finally putting something together, parts are at Green Racing in Colorado.

C 460 heads 525/365 2.45 Ti intake valves 1.9 exh ss
WW shaft rockers 1.8 intake/1.75 exh
Scat 4.5 billet w/short snout
ATI balancer
4.6 bore
oliver billet rods
13.5.1 compression
Eliminator premier block
Double pinned roller .472 intake lobe/.451 Exh. lobe dur @.050 284 int/302 exh 114 C/L
.904 lifters Crower
C 460 ported intake w/edelbrock annular fogger titanium nozzles flowed/installed by IS.
Billet fab wet sump pan w/titan pump
Danny Bee
1450 Pro Systems gas dominator



Sheldon G.


Last edited by STR-LGL-70 on December 24th 2018, 9:02 am; edited 3 times in total (Reason for editing : compression change &cam spec)
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  dfree383 on November 12th 2018, 1:55 pm

The Alky dominator is going to be a bottle neck IMO
dfree383
dfree383
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 14268
Join date : 2009-07-09
Location : Home Wif Da Wife.....

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  Curt on November 12th 2018, 2:20 pm

STR-LGL-70 wrote: most C head builds I've seen are done by 7100-7200 anyway unless I'm mistaken,

Sheldon G.

You're kidding right?
Curt
Curt

Posts : 2698
Join date : 2009-02-08
Age : 57
Location : Henrietta, Texas but mostly on the road

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  John Myrick on November 12th 2018, 7:22 pm

If you're going to run alky get a Rons systems
John Myrick
John Myrick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 1081
Join date : 2011-02-05
Age : 57
Location : Maryland

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on November 13th 2018, 9:13 am

Curt wrote:
STR-LGL-70 wrote: most C head builds I've seen are done by 7100-7200 anyway unless I'm mistaken,

Sheldon G.

You're kidding right?

Well I suppose it depends on the components, etc and I'm sure there are ones that peak much higher but seems like the majority I've seen posted peak around that area?
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  68formalGT on November 13th 2018, 10:23 am

I think Schmitty's 632 peaked a little bit higher then that but I'm pretty sure it was done before 7800.
68formalGT
68formalGT

Posts : 834
Join date : 2012-02-13
Location : Pueblo West, Colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on November 13th 2018, 10:34 am

I've done a lot of searching on here and must have overlooked it, also some of the older posts photobucket removed what pictures were posted if i'm not mistaken.
Anyway I'm going to a 1450 on gas instead of alky 1250 so that should help it breathe a little deeper.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  68formalGT on November 13th 2018, 10:43 am

Schmitty runs a little bigger carb then the 1450, Oakley supplied a 2.300" Quick Fuel for that build.

http://www.429-460.com/t20502-632-c-head-engine
68formalGT
68formalGT

Posts : 834
Join date : 2012-02-13
Location : Pueblo West, Colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on November 14th 2018, 8:10 am

68formalGT wrote:Schmitty runs a little bigger carb then the 1450, Oakley supplied a 2.300" Quick Fuel for that build.

http://www.429-460.com/t20502-632-c-head-engine


Thanks for the link, badass build for sure!
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Dyno Results

Post  STR-LGL-70 on December 26th 2018, 3:00 pm

Ended up with 1126 hp @ 7000 and 901 tq at 6100 so i'm pretty happy with the results. Gonna be a big change from DOOE-R heads and a port-o sonic Laughing
Can only speculate with more cam and compression would it have made, definitely left some on the table. Should be a reliable bracket engine that makes good power w/o having to spin it too hard.

Also tried a BRE carb with 2.2 throttle blades and went 1151 hp.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  psfracer on December 27th 2018, 7:31 pm

I think that is great results. I have more compression, more cam, and two carbs and that was 1188 at 7800 rpm.

psfracer
psfracer

Posts : 794
Join date : 2010-10-22
Location : Valencia, CA

http://www.psfracer.com

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  68formalGT on December 28th 2018, 1:27 am

1.88 horse per cube!!!!
68formalGT
68formalGT

Posts : 834
Join date : 2012-02-13
Location : Pueblo West, Colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on December 28th 2018, 1:27 pm

psfracer wrote:I think that is great results.   I have more compression, more cam, and two carbs and that was 1188 at 7800 rpm.

I think so too, especially considering the things you mentioned. Hopefully with the smallish cam and lower compression it will reduce the maintenance somewhat. I still agree with the A heads and now the SR-71 also being the best bang for the buck.

Sheldon G.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on December 28th 2018, 1:48 pm

68formalGT wrote:1.88 horse per cube!!!!

It's pretty good but if you check out some of the others on here they are right at 2 hp per cube. The C heads and Keith Fulps' interceptor heads are pretty serious pieces. I do believe Freelander is sandbagging a bit on his 638 Razz

Sheldon G
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  powerstrokeace on January 19th 2019, 11:37 pm

Sheldon? was this Dyno'd at Monte shop and the numbers corrected for sea level?
powerstrokeace
powerstrokeace

Posts : 1494
Join date : 2009-09-07
Location : colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  68formalGT on January 19th 2019, 11:55 pm

powerstrokeace wrote:Sheldon? was this Dyno'd at Monte shop and the numbers corrected for sea level?

Haxton is 4000' above sea level.
68formalGT
68formalGT

Posts : 834
Join date : 2012-02-13
Location : Pueblo West, Colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on January 20th 2019, 10:37 am

Yes, it was dynoed at Monte's shop but I will have to find out about the correction factor. Monte did say that the weather wasn't the best the day they got final #'s or it may have made a little more. Also there was no spacer between carb and intake so there is probably a little there as well. I do have a dyno pull video but don't know how to post it.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on January 23rd 2019, 2:31 pm

powerstrokeace wrote:Sheldon? was this Dyno'd at Monte shop and the numbers corrected for sea level?

Yes, numbers are corrected.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  Lem Evans on January 23rd 2019, 4:16 pm

STR-LGL-70 wrote:Ended up with 1126 hp @ 7000 and 901 tq at 6100 so i'm pretty happy with the results. Gonna be a big change from DOOE-R heads and a port-o sonic Laughing
Can only speculate with more cam and compression would it have made, definitely left some on the table. Should be a reliable bracket engine that makes good power w/o having to spin it too hard.

Also tried a BRE carb with 2.2 throttle blades and went 1151 hp.

That thing would love being 15.5/1.

Lem Evans

Posts : 7298
Join date : 2008-12-03
Location : Livermore , Ky

http://bfevansraceparts.com

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  68formalGT on January 23rd 2019, 4:32 pm

When do you think you'll get a chance to put it on the track and make a pass?
68formalGT
68formalGT

Posts : 834
Join date : 2012-02-13
Location : Pueblo West, Colorado

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on January 27th 2019, 11:25 am

Lem Evans wrote:
STR-LGL-70 wrote:Ended up with 1126 hp @ 7000 and 901 tq at 6100 so i'm pretty happy with the results. Gonna be a big change from DOOE-R heads and a port-o sonic Laughing
Can only speculate with more cam and compression would it have made, definitely left some on the table. Should be a reliable bracket engine that makes good power w/o having to spin it too hard.

Also tried a BRE carb with 2.2 throttle blades and went 1151 hp.

That thing would love being 15.5/1.

Yes sir it would! Decided on the lower compression so when I'm ready to start using the fogger set up I would have less chance of hurting it.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

598 C heads Empty Re: 598 C heads

Post  STR-LGL-70 on January 27th 2019, 11:31 am

68formalGT wrote:When do you think you'll get a chance to put it on the track and make a pass?

I'd say best case 2 or 3 months. I need to do a rear shock up grade, new slicks, chute and I'm sure I'll run into other things. Would also like to change the input shaft on the C-6 while it's out.
STR-LGL-70
STR-LGL-70

Posts : 216
Join date : 2009-08-06
Age : 56
Location : Daytona FL

Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum