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-   -   4 SPEED CONVERSION (https://forums.maxperformanceinc.com/forums/showthread.php?t=442983)

BLOWBAYOU 10-03-2002 07:06 PM
I'M WANTING TO CHANGE MY 71 LEMANS FROM AN AUTOMATIC TO A 4 SPEED. I HAVE SOME QUESTIONS I HOPE THAT SOMEONE COULD ANSWER.
1. THE ENGINE IS A 350 PONTIAC ENGINE. IS THE CRANK ALREADY DRILLED FOR A PILOT BEARING?
2. I HAVE A FLYWHEEL WITH A CASTING # 9779233.
CAN ANYONE I-D THIS NUMBER? DOES IT USE A 10 1/2 INCH CLUTCH OR 11 ? DOES IT MATTER?

BLOWBAYOU 10-03-2002 07:06 PM
I'M WANTING TO CHANGE MY 71 LEMANS FROM AN AUTOMATIC TO A 4 SPEED. I HAVE SOME QUESTIONS I HOPE THAT SOMEONE COULD ANSWER.
1. THE ENGINE IS A 350 PONTIAC ENGINE. IS THE CRANK ALREADY DRILLED FOR A PILOT BEARING?
2. I HAVE A FLYWHEEL WITH A CASTING # 9779233.
CAN ANYONE I-D THIS NUMBER? DOES IT USE A 10 1/2 INCH CLUTCH OR 11 ? DOES IT MATTER?

Half-Inch Stud 10-04-2002 08:36 AM
the crank is drilled for the pilot bearing.

If the flywheel can fit a 400/455 crankflange, it will fit the 350 crank flange pattern.

10.4 vs 11.0 Pressure Plate...I dunno...is it a dual-pattern flywheel?

"11.00/123MPH/1.50 60foot/29.5"/4.10:1/10"/472 #48/Flat HYD/DualQuad/Wenzler/3250Lbs
12.00/112MPH/1.61 60foot/26"/3.31:1/10"/472 #48/FlatHYD/Q-Jet/Torker/3650Lbs"

BLOWBAYOU 10-04-2002 11:32 AM
WELL, I CAN REST EASIER NOW THAT I KNOW THE CRANK ISN'T GOING TO BE A PROBLEM!
AS FOR THE FLYWHEEL, IT CAME OFF OF A 69 GTO.
NO, IT ISN'T A DUAL BOLT PATTERN.

THANKS FOR YOUR INPUT!


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