Visit The Dirt Forum for More Information

Author Topic:   rod width
hoosierdaddy48
Dirt Maniac

Total posts: 122
posted December 15, 2005 08:31 PM  
what the standard width on a sbc rod?

uintyracer
Dirt Roller

Total posts: 12
posted December 15, 2005 08:55 PM  
quote:
Originally posted by hoosierdaddy48:
what the standard width on a sbc rod?
Standard width of SBC rods on big end is .940


hoosierdaddy48
Dirt Maniac

Total posts: 122
posted December 15, 2005 09:19 PM  
thanx for the quick reply, now for the delima, should a guy get a used set of carillo rods, an off brand of h-beam rods, or a set of eagle or equivalant i beams??

zeroracing
Dirt Forum Champ
Total posts: 1932
posted December 15, 2005 09:42 PM  
Whats your delima?
Whats the price on the carillo ones? What size are they, you must make sure they are the right size on all parts. How used are they? As long as they have not been worn out for years and years they are a good step above any of those others you mentioned.

hoosierdaddy48
Dirt Maniac

Total posts: 122
posted December 15, 2005 11:28 PM  
they are a used set of nascar rods off ebay, claims they have less than 500 miles..... 250 dollars,

zeroracing
Dirt Forum Champ
Total posts: 1932
posted December 16, 2005 06:51 AM  
Well, you must make sure they are the correct size, My last carrillo are from hendrick and were supposed to be used in a cup motor but I got them. They are honda(1.8888) on bottom, .827 pin(everybody else uses .927), And are really narrow.

hoosierdaddy48
Dirt Maniac

Total posts: 122
posted December 16, 2005 09:22 AM  
thats why i was asking the standard width, cause they are .940, 6" with the .867 pin....

stockcar5
Dirt Forum Champ
Total posts: 596
posted December 16, 2005 04:11 PM  
i would get the carrillos for sure and either open up the small end to .927 if possible or have custom pistons made for the smaller pin.

------------------
www.sathoffracing.com

mike9
Dirt Forum Racer

Total posts: 87
posted December 16, 2005 04:15 PM  
i bought a set of 6.125 inch carillo rods off e bay and they checked out perfect i got them for what a set of eagles would run , the carr rod bolts cost more than that new

uintyracer
Dirt Roller

Total posts: 12
posted December 16, 2005 10:41 PM  
If you buy nascar used carrillo's on ebay and they are narrow width on the rod journal, you can run guided pistons (JE makes them and you can also have a machine shop make bushings to go along side the rod on the wrist pin). You need 4 or 5 thousands clearance.. You cannot go more than 10 under on the crank journals or the oil hole is not in line. The big end of the rod just floats on the crankshaft.Must use narrowed bearings..Cup engines did this for several years.

MrHP1
Dirt Roller

Total posts: 24
posted December 17, 2005 04:33 PM  
I don't care for the piston guided rod theory. I built one Craftsman truck engine like that, got the pieces from Bill Davis Racing. Honda Journal, Bill Miller Pistons. Not my choice, customer supplied. Made big power put every time it ran I was scared it was going to grenade. Bad advertising for an engine builder like me if it ventilates ya know. .866 wrist pin is VW size. Used on hundreds of engines with zero problems. Can't beat Carrillo's and Carr bolts. Never Break.

stockcar5
Dirt Forum Champ
Total posts: 596
posted December 18, 2005 07:52 PM  
all the cup car and most high end late model motors are piston guided rods. must be something to it....

------------------
www.sathoffracing.com

MrHP1
Dirt Roller

Total posts: 24
posted December 18, 2005 10:41 PM  
All the Cup cars on restrictor plate tracks. 400 horsepower doesn't break parts. I've watched Roush dyno a lot of Daytona motors. 400, 425 horsies. We're harder on our Modified motors. I love watching NASCAR. But you regular guys with no budget have it a lot harder.

Back to the Archives