SBC Heads

General Engine Discussion

Moderator: John_Heard

Post Reply
Message
Author
User avatar
Craig W.
Posts: 1257
Joined: Thu May 12, 2005 11:01 am
Location: Columbia, KY
Contact:

SBC Heads

#1 Post by Craig W. » Sun Aug 22, 2010 7:20 am

This winter, I'm hoping to turn up the wick on my engine package. I need better heads than the Brodix 18X that I have now. They've been a great head but my competition is using better stuff and I need to keep up.

I've through hard about SB2.2 and just don't know that the money will be there for that kind of setup. Very expensive, especially since I can't just throw some used Cup stuff on there and make it live on nitrous.

So I've looked some at CFE's 15 degree wedge head. If I go that route, I can probably pick up a good bit of power and not break the bank.

But is there another head out there that I should be considering instead? I don't know much about the Edelbrock GB2000/2300 stuff. I need to find out more about them and who is good at porting them.

So what would you guys use to build a competitive TT5 small block nitrous motor?
Craig Watson
2QuickNovas Racing
5.23@131

Sponsors:
AEM Electronics
Carnivore Performance
Rapp Racing
VFN Fiberglass
Fast Shafts

sc racing
Posts: 1773
Joined: Sun Jun 11, 2006 1:45 pm
Location: Sahuartia Az

Re: SBC Heads

#2 Post by sc racing » Sun Aug 22, 2010 8:40 am

You should contact RFD I bet he can get you what you need.

427belair
Posts: 284
Joined: Tue Aug 15, 2006 10:23 pm
Location: greatfalls,mt

Re: SBC Heads

#3 Post by 427belair » Sun Aug 22, 2010 12:26 pm

The SB2.2 heads require a specific block. I'm not sure if you have looked into that. I seems like the RFD 15*s or the RFD 18*are a killer head http://www.raceflowdevelopment.com/RFD- ... onster.htm.

There are a lot of fast guys running the CFE heads as well, but $$$$$.

User avatar
jmarkaudio
Posts: 278
Joined: Fri Oct 26, 2007 4:22 pm
Location: Florida

Re: SBC Heads

#4 Post by jmarkaudio » Sun Aug 22, 2010 1:29 pm

427belair wrote:The SB2.2 heads require a specific block.

Not at all. You can use the same lifters an 18˚ engine uses, a single offset. The 447 we put together 3 years ago now in my brothers car has a standard inline lifter setup. It does require different pistons and a different cam as the intake and exhaust swap places on all 4 corners. My 461 SB2 does have the SB2 offset and is preferable, just not a requirement. However the combustion chambers on the SB2 need to be worked over if you plan to use a significant amount of NOS. I do suggest since you already have an 18˚ head, call Curtis at RFD and get him to work up a set of 18˚ or 15˚ for you.
Mark Whitener
Image
____________

Good work isn't cheap and cheap work can't be good.

User avatar
Craig W.
Posts: 1257
Joined: Thu May 12, 2005 11:01 am
Location: Columbia, KY
Contact:

Re: SBC Heads

#5 Post by Craig W. » Sun Aug 22, 2010 3:16 pm

I talked to Curtis last winter actually and was leaning toward his Monster 15 degree heads at that time. Then I got to thinking SB2 again this summer and forgot I had talked with him. LOL

As I recall, he thought I could probably just fly cut my pistons for the 15 degree angle and not have to do more than freshen the bottom end. That would be great since the crank and rods have less than a season on them.

Hopefully the guy that's going to buy my 18 degree top end will come through and I can get down to business in November.

Thanks.
Craig Watson
2QuickNovas Racing
5.23@131

Sponsors:
AEM Electronics
Carnivore Performance
Rapp Racing
VFN Fiberglass
Fast Shafts

427belair
Posts: 284
Joined: Tue Aug 15, 2006 10:23 pm
Location: greatfalls,mt

Re: SBC Heads

#6 Post by 427belair » Sun Aug 22, 2010 6:12 pm

jmarkaudio wrote:
427belair wrote:The SB2.2 heads require a specific block.

Not at all. You can use the same lifters an 18˚ engine uses, a single offset. The 447 we put together 3 years ago now in my brothers car has a standard inline lifter setup. It does require different pistons and a different cam as the intake and exhaust swap places on all 4 corners. My 461 SB2 does have the SB2 offset and is preferable, just not a requirement. However the combustion chambers on the SB2 need to be worked over if you plan to use a significant amount of NOS. I do suggest since you already have an 18˚ head, call Curtis at RFD and get him to work up a set of 18˚ or 15˚ for you.

Shoot your right I was thinking of the little cheifs......my bad.

User avatar
Craig W.
Posts: 1257
Joined: Thu May 12, 2005 11:01 am
Location: Columbia, KY
Contact:

Re: SBC Heads

#7 Post by Craig W. » Sun Aug 22, 2010 8:14 pm

Definitely can't swing little chiefs. No cubic dollars available. :shock:
Craig Watson
2QuickNovas Racing
5.23@131

Sponsors:
AEM Electronics
Carnivore Performance
Rapp Racing
VFN Fiberglass
Fast Shafts

427belair
Posts: 284
Joined: Tue Aug 15, 2006 10:23 pm
Location: greatfalls,mt

Re: SBC Heads

#8 Post by 427belair » Sun Aug 22, 2010 8:23 pm

I know Craig the little cheif heads cost more than my whole engine....lol

User avatar
Mike Peters
Posts: 930
Joined: Wed Oct 12, 2005 1:48 pm
Location: Wichita, KS

Re: SBC Heads

#9 Post by Mike Peters » Mon Aug 23, 2010 2:31 pm

Craig, talk to the piston manufacturer of your choice before making a final decision on heads. The shallower the valve angle, the further the valve relief is pushed to the edge of the piston. I like the suggestion of using another 18 degree head. Valve angles have some bearing on flow but, the port location has more. A great set of 18 high ports would flow all you want and leave plenty of piston face for strength under the big tune ups.
"If winning was easy, losers would be doing it"

ERV JR
Posts: 293
Joined: Mon Jun 25, 2007 5:03 pm

Re: SBC Heads

#10 Post by ERV JR » Thu Aug 26, 2010 2:28 am

pro action RR or All Pro RR 23*, take the weigh break ,

User avatar
Craig W.
Posts: 1257
Joined: Thu May 12, 2005 11:01 am
Location: Columbia, KY
Contact:

Re: SBC Heads

#11 Post by Craig W. » Thu Aug 26, 2010 7:38 am

No weight break for running stock angle heads.
Craig Watson
2QuickNovas Racing
5.23@131

Sponsors:
AEM Electronics
Carnivore Performance
Rapp Racing
VFN Fiberglass
Fast Shafts

Post Reply

Who is online

Users browsing this forum: No registered users and 25 guests