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28oz vs50oz Flywheel

  • Thread starter Thread starter bagel77
  • Start date Start date Jul 7, 2006
B

bagel77

New Member
Oct 4, 2003
42
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0
Jul 7, 2006
#1
  • Jul 7, 2006
  • #1
Okaycan I use a 28oz flywheel on a stock 302-5.0 or do I need to use the 50oz? if I can use the 28oz is there an advantage??
 
M

Mike92GT

Founding Member
Jan 23, 2002
583
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0
Florida
Jul 7, 2006
#2
  • Jul 7, 2006
  • #2
You have to use the 50 oz
 
C

carbed89notch

New Member
May 21, 2006
3
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0
Windsor, Canada
Jul 7, 2006
#3
  • Jul 7, 2006
  • #3
28oz = bad news!
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Jul 12, 2006
#4
  • Jul 12, 2006
  • #4
28 oz is a 351w flywheel. inorder to use it on a 302 the crank needs to be balanced to the 28 oz flywheel and harmonic balancer. the 50oz is whatyou need to use on a stock 302 rotating assembly.
 

88Stang331

New Member
Mar 30, 2006
239
0
0
Jul 12, 2006
#5
  • Jul 12, 2006
  • #5
There would be an advantage to going with a 28oz flywheel, only if the crank was balanced to 28oz, because it would be less rotating mass. However if you were to throw a 28oz on a flywheel thats balanced to 50oz, it will bend over and rape your engine.
 
F

foxstang9050

New Member
Aug 23, 2005
158
0
0
El Doarado Hills, CA
Jul 12, 2006
#6
  • Jul 12, 2006
  • #6
dont make the same mistake as me... saw "28oz" and got all antsy in my pantsy now im screwed... now say byebye to that mustang im makin it somebody elses problem
 

Musclecarfan88

Member
Dec 30, 2002
184
0
16
Indianapolis, Indiana
Jul 13, 2006
#7
  • Jul 13, 2006
  • #7
what year is your motor? cause ive got a 28oz flywheel in my car... but the motor is a 74. i think 81 was the last year for the 28oz balance.
 
J

JS94cobra

Banned
Mar 8, 2006
58
0
0
NJ
Jul 13, 2006
#8
  • Jul 13, 2006
  • #8
Musclecarfan88 said:
what year is your motor? cause ive got a 28oz flywheel in my car... but the motor is a 74. i think 81 was the last year for the 28oz balance.[/Q]

Early 302s and 289 used a 28oz balance. I am unsure of the exact year ford switch to 50oz balance. Don't put a 28oz balance on a 50 oz balanced motor. 28oz balances are also used on stroker kits if not building a high revving strip motor. Then with forged guts an internal balance is recommended.
Click to expand...
 

Musclecarfan88

Member
Dec 30, 2002
184
0
16
Indianapolis, Indiana
Jul 13, 2006
#9
  • Jul 13, 2006
  • #9
JS94cobra said:
Musclecarfan88 said:
what year is your motor? cause ive got a 28oz flywheel in my car... but the motor is a 74. i think 81 was the last year for the 28oz balance.[/Q]

Early 302s and 289 used a 28oz balance. I am unsure of the exact year ford switch to 50oz balance. Don't put a 28oz balance on a 50 oz balanced motor. 28oz balances are also used on stroker kits if not building a high revving strip motor. Then with forged guts an internal balance is recommended.
Click to expand...


81 was the switch. so pre 81 302s are 28.2oz balance, and 81+ are 50oz
Click to expand...
 
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