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Author Topic:   SBC Heads....
kmongo
Dirt Roller

Total posts: 21
posted September 11, 2004 09:39 PM  
I just read the question about the 041 cast heads being the best, the track Im building my car for forbids 041 cast.Whats the next best thing 882,487,441 any help would be greatly appreciated.

racer17j
Dirt Forum Champ
Total posts: 5390
posted September 11, 2004 09:50 PM  
quote:
Originally posted by racer17j:
what cc heads areyou limited too if you have to run open chamber heads then it's 487x,441,993,882's in that order

The rule states no vortec head no double hump heads allowed, 1.94 max intake 1.50 max exhaust, no port matching no polishing or porting allowed. Thanks for any advice

gould
Dirt Forum Champ
Total posts: 730
posted September 13, 2004 06:36 PM  
can you run an aftermarket head? what piston are you using? Are you limited on compression ratio?

------------------
www.geocities.com/gouldracing11

kmongo
Dirt Roller

Total posts: 21
posted September 17, 2004 10:45 AM  
I have to run a flat top or dished piston, Stock production heads, stock cast iron 2 barrel intake,no roller tip or roller rockers, no roller cams, .450 lift max. The cam rule is going to change and they are going to start using vacuum checks. Must pull 18 in. of vacuum at 1000 RPM.Hope you can help me with this info. I greatly appreciate any help from the veterans!

rico 08
Dirt Forum Champ
Total posts: 1139
posted September 18, 2004 08:58 AM  
the 041's have the holes in the end,they look similar to the smog heads...but if the rules say no 041 castings they'll get you if they pull the valve cover,i'd go with the 441's.

[This message has been edited by rico 08 (edited September 18, 2004).]

gould
Dirt Forum Champ
Total posts: 730
posted September 19, 2004 06:54 AM  
hmmm........maybe look into a flat top piston and a set of 305 heads. that will give you good compression. with the 450 lift rule these heads should flow ok.

kmongo
Dirt Roller

Total posts: 21
posted September 19, 2004 09:16 PM  
Thanks fella's, Im just now getting knee deep into my engine,and appreciate all the info!!!

Footlead
Dirt Roller

Total posts: 24
posted September 30, 2004 08:22 PM  
041's are closed chambered 64cc heads !!!!

441's are open chambered 76cc heads !!!!


Most classes allow open cambered heasds only.

Of course the closed chambered heads make more Hp----more compression.

KPLugnut
Dirt Forum Champ
Total posts: 1019
posted October 01, 2004 06:05 AM  
Do they also forbid using the 186 castings? They're basically the twin to the 041's....

And I have a set or two I'd part with....:-)

KP

kmongo
Dirt Roller

Total posts: 21
posted October 04, 2004 10:02 AM  
The rules dont say anything except no 041's,no vortec, no double hump, max intake 194, max exhaust 150. how much do you want for your heads and what condition are they in, if you have some pictures send them to kmongo@cableone.net Thanks Kevin

KPLugnut
Dirt Forum Champ
Total posts: 1019
posted October 04, 2004 10:16 AM  
I have 2 sets of 186's, both are bare unrebuilt cores and one set is pretty rusty, but salvageable.
I also have a set of 400 heads (not cracked) with studs.
the 400 heads, tho, are big chamber, and 2.02 valves, so they won't work for ya.
Not sure it you're interested, so let me know.


sbc350
Dirt Full Roller

Total posts: 59
posted October 04, 2004 08:13 PM  
I have a set of 186's also, they do have the double humps on them so i'd say those are out as well. The 186 looks similar to the 492 head, has the accessory bolt holes, but also has the two small humps. As far as the 041, that was pretty much the only "fuelie" type head that didn't have the humps on them.

kmongo
Dirt Roller

Total posts: 21
posted October 05, 2004 11:44 AM  
Thanks for the replys guys, Im going to keep shopping and keep combing the salvage yards. I'll keep you guys in mind thanks alot for all the input.

hobby39
Dirt Maniac

Total posts: 112
posted October 05, 2004 04:06 PM  
SBC350 how much are you asking for the 186's and what condition are they in E-mail me at scott_young86@earthlink.net

sbc350
Dirt Full Roller

Total posts: 59
posted October 05, 2004 09:46 PM  
Oh, sorry but they're not for sale. They're on one of my engines, I was just using them as an example.

KPLugnut
Dirt Forum Champ
Total posts: 1019
posted October 06, 2004 06:39 AM  
I also have these sets of heads for sale:
126 casting - 400sbc, 76cc, 2.02/1.6 valves, with skrew-in studs

997 casting - 76cc, 1.94/1.60 valves

882 casting - 72cc, with oem valves (never rebuilt)

450 casting - 305 4bbl heads, never rebuilt

2 sets of 186 castings, bare, and need full work.

No reasonable offers refused, buyer pays shipping too.

JLMK,
KP

willi23
Dirt Roller

Total posts: 7
posted October 25, 2004 08:03 PM  
what kind of money for the 126 heads?

KPLugnut
Dirt Forum Champ
Total posts: 1019
posted October 26, 2004 06:23 AM  
$100 plus shipping.

49mtmod
Dirt Maniac

Total posts: 127
posted October 26, 2004 07:43 AM  
I have a set of 186s that came off of a running bomber/pure stock motor about 7 or 8 years ago and have been sitting ever since. I can't tell you much about them other than they should be gone through. No reasonable offer refused! Can send pics, shipping would be from 59105.

bfx racing
Dirt Full Roller

Total posts: 42
posted October 26, 2004 08:52 AM  
Kmongo... It seems we have the same rules(for now anyway) I was wondering the same question, It sounds like the 441's are best for our set up...i'll keep checking the board to see if some one has other thoughts...Thanks for answering my question...

I-B-RACIN
Dirt Maniac

Total posts: 132
posted October 27, 2004 03:47 PM  
How good do 126's flow compared to like a 487 or 441 or 993
Thanks

kmongo
Dirt Roller

Total posts: 21
posted October 28, 2004 10:01 PM  
bfx Racing where do you run at? Im located in the DEEP south and just getting started for next year. What kinda car are you runnin? Any information, strategy's, hint,s would be greatly appreciated. Thanks Kevin

Footlead
Dirt Roller

Total posts: 24
posted October 29, 2004 05:19 PM  
The 487 heads will flow a little better than the 441"s

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