Question for all the SBC guys.

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Moparious Maximus
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Question for all the SBC guys.

#1 Post by Moparious Maximus » Mon Apr 19, 2010 10:30 am

Do any of the small block guys in here use cranks with bbc posts?

I'm looking for one and would like to know who you use?
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana

http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o

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CDR Performance
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Re: Question for all the SBC guys.

#2 Post by CDR Performance » Mon Apr 19, 2010 5:07 pm

SBC cranks with BBC snout's.?
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vegaracer
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Re: Question for all the SBC guys.

#3 Post by vegaracer » Mon Apr 19, 2010 10:41 pm

I don't have one, but a friend had one in his Anglia. It was a Bryant crank. Only one he had that didn't break the snout off.
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

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CDR Performance
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Re: Question for all the SBC guys.

#4 Post by CDR Performance » Tue Apr 20, 2010 5:49 am

Blower and crank snouts? It is not a matter of if the crank break but a matter time and when it will break.
We have broken then all at one time or another. Blower cranks need to have scheduled life cycle and get it out of the block before it fails.
CDR PERFORMANCE
The Custom Engine Shop

Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3

http://www.cdrperformance.biz

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Moparious Maximus
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Re: Question for all the SBC guys.

#5 Post by Moparious Maximus » Tue Apr 20, 2010 8:23 am

CDR Performance wrote:Blower and crank snouts? It is not a matter of if the crank break but a matter time and when it will break.
We have broken then all at one time or another. Blower cranks need to have scheduled life cycle and get it out of the block before it fails.

Any blown motor is going to be tough on parts.

A small chevys weak point is the snout, so if you build one with an sbc snout it WILL break off unless you use a crank support, we dont have room for it, bbc snouts hold up just fine.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana

http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o

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CDR Performance
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Location: Indianapolis, Indiana

Re: Question for all the SBC guys.

#6 Post by CDR Performance » Tue Apr 20, 2010 9:19 am

The bbc snouted sbc crank is better. Still it should have life cycle replacement time and be tracked. Yes a crank support is the best way to go.

To a bbc/s/sbc only a few things need to change.
CDR PERFORMANCE
The Custom Engine Shop

Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3

http://www.cdrperformance.biz

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CDR Performance
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Re: Question for all the SBC guys.

#7 Post by CDR Performance » Tue Apr 20, 2010 9:21 am

Image
CDR PERFORMANCE
The Custom Engine Shop

Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3

http://www.cdrperformance.biz

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vegaracer
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Re: Question for all the SBC guys.

#8 Post by vegaracer » Tue Apr 20, 2010 9:17 pm

He was breaking snouts with a crank support. I guess it just didn't like a 14-71 high helix. :smt102
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

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CDR Performance
Posts: 147
Joined: Tue Mar 02, 2010 7:41 pm
Location: Indianapolis, Indiana

Re: Question for all the SBC guys.

#9 Post by CDR Performance » Wed Apr 21, 2010 6:30 am

vegaracer wrote:He was breaking snouts with a crank support. I guess it just didn't like a 14-71 high helix. :smt102
For some reason the 14-71's draw a little hp. Turbos don't break cranks like that... :thumb:
CDR PERFORMANCE
The Custom Engine Shop

Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3

http://www.cdrperformance.biz

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Moparious Maximus
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Location: Iowa

Re: Question for all the SBC guys.

#10 Post by Moparious Maximus » Wed Apr 21, 2010 8:14 am

vegaracer wrote:He was breaking snouts with a crank support. I guess it just didn't like a 14-71 high helix. :smt102

A 14-71 HH on a small block, haha, I love it!

This is just a mild-ish 6-71 motor.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana

http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o

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vegaracer
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Joined: Mon Aug 20, 2007 1:12 pm
Location: Wyoming, Ontario, CANADA

Re: Question for all the SBC guys.

#11 Post by vegaracer » Wed Apr 21, 2010 10:46 pm

CDR Performance wrote:
vegaracer wrote:He was breaking snouts with a crank support. I guess it just didn't like a 14-71 high helix. :smt102
For some reason the 14-71's draw a little hp. Turbos don't break cranks like that... :thumb:
Yup. Thats why he's running twin 91's on a 526AJ now. :attack:
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

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