[DeTomaso] Ford flywheel size and weight????

[jderyke at aol.com]

No reason they need that. FWIW, the 157 tooth flywheel is 30mm smaller in OD than the 164 tooth but both are set for the early factory 28.2 in-oz imbalance. Not sure on the 302 but a 351-C grey-iron flywheel weighs 32 lbs uncut/unworn. A 302 takes a 10-1/2" clutch, the 351C an 11"- as stock- but things can sure change in 40 years.... 
Your friend should ask them if their crank kit can be balanced without $100 worth of Mallory-metal, and whether the crank nose is sized to take a stock dia harmonic balancer. So many Chinese cranks come in with undersized noses, some balancer mfgs have a special undersized part number for them. Otherwise, most balancers are a slip fit and do no vibration-absorbtion. Good luck to him- J Deryke
 

 

 

-----Original Message-----
From: Jerry Knotts <knottsj at galstar.com>
To: De Tomaso List <detomaso at poca.com>
Sent: Mon, Jun 9, 2014 6:59 pm
Subject: [DeTomaso] Ford flywheel size and weight????


There are many questions that I can't answer but this one is vexing.

A Chrysler motor builder friend of mine is working on a Ford 302 and 
asked me a question about flywheel tooth counts.  He ordered a 347 
stroker kit for the 302 and they wanted to know how many teeth on the 
flywheel.  He asked me why they needed that information?
I fumbled through all my extraneous explanations.  There are 2 major 
tooth configurations 157 and 164 lesser used 148 teeth.  There and 2 
major imbalance configurations 28oz and 50oz lesser used 0oz.  Both 
balances take a particular harmonic balance that is compatible with the 
imbalance of the flywheel.  Backing plate sizes and starter ends vary by 
diameter and depth for standard and auto trans and flywheel teeth.
I finally figured out I have no idea.

Is there a concise explanation.  If so what is it.

Thanks in advance,
jerry knotts

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-------------- next part --------------
   No reason they need that. FWIW, the 157 tooth flywheel is 30mm smaller
   in OD than the 164 tooth but both are set for the early factory 28.2
   in-oz imbalance. Not sure on the 302 but a 351-C grey-iron flywheel
   weighs 32 lbs uncut/unworn. A 302 takes a 10-1/2" clutch, the 351C an
   11"- as stock- but things can sure change in 40 years....
   Your friend should ask them if their crank kit can be balanced without
   $100 worth of Mallory-metal, and whether the crank nose is sized to
   take a stock dia harmonic balancer. So many Chinese cranks come in with
   undersized noses, some balancer mfgs have a special undersized part
   number for them. Otherwise, most balancers are a slip fit and do no
   vibration-absorbtion. Good luck to him- J Deryke

   -----Original Message-----
   From: Jerry Knotts <knottsj at galstar.com>
   To: De Tomaso List <detomaso at poca.com>
   Sent: Mon, Jun 9, 2014 6:59 pm
   Subject: [DeTomaso] Ford flywheel size and weight????
There are many questions that I can't answer but this one is vexing.

A Chrysler motor builder friend of mine is working on a Ford 302 and
asked me a question about flywheel tooth counts.  He ordered a 347
stroker kit for the 302 and they wanted to know how many teeth on the
flywheel.  He asked me why they needed that information?
I fumbled through all my extraneous explanations.  There are 2 major
tooth configurations 157 and 164 lesser used 148 teeth.  There and 2
major imbalance configurations 28oz and 50oz lesser used 0oz.  Both
balances take a particular harmonic balance that is compatible with the
imbalance of the flywheel.  Backing plate sizes and starter ends vary by
diameter and depth for standard and auto trans and flywheel teeth.
I finally figured out I have no idea.

Is there a concise explanation.  If so what is it.

Thanks in advance,
jerry knotts

_______________________________________________

Detomaso Forum Managed by POCA

DeTomaso mailing list
[1]DeTomaso at poca.com
[2]http://poca.com/mailman/listinfo/detomaso_poca.com

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