Small-Block Measurements?
More Turbo
Joined: Oct 2009
Posts: 731
Likes: 6
From: Jonesborough, TN
Hey Gary,
I can't believe you don't have this info yet. I wondered out to the garage and pulled the flywheel I purchased for my project. It's a 351W based 408. The flywheel thickness appears to be just about 63/64". I didn't have a caliper, but my trusty combination square came up between 31/32" and 1.00". Does that help at all?
Ron
I can't believe you don't have this info yet. I wondered out to the garage and pulled the flywheel I purchased for my project. It's a 351W based 408. The flywheel thickness appears to be just about 63/64". I didn't have a caliper, but my trusty combination square came up between 31/32" and 1.00". Does that help at all?
Ron
Cargo Master
Joined: Aug 2007
Posts: 2,558
Likes: 69
From: New Zealand
OK - got there, Gary. 
Just so you know (as it affects dimension #1), the flywheel on this 302 has been refaced & measures .942" from the rear (friction) face, to the front machined face, which pulls up to the crankshaft.
Also, if it makes any difference, this is an E7TE block, with a one-piece rear seal crankshaft.
1. The distance from the friction face of the flywheel to the machined bellhousing surface of the block is 1.208"
2. The distance from the rear of the pilot bearing to the same bellhousing surface of the block is .64" - BUT this is with a pilot bearing that sits .157" proud of the crankshaft rear face.
I have another new pilot bearing here that only sits .102" proud - so there can be some variation between bearings.
Pilot bearing dimensions are -
OD - 1.38" (shoulder dia. is 1.44")
ID - To suit .669" dia. pilot tip
Length to underside of shoulder - .575"
Underside of shoulder to outer end, as mentioned above.
Hope this gives what you need Gary.
Just so you know (as it affects dimension #1), the flywheel on this 302 has been refaced & measures .942" from the rear (friction) face, to the front machined face, which pulls up to the crankshaft.
Also, if it makes any difference, this is an E7TE block, with a one-piece rear seal crankshaft.
2. The distance from the rear of the pilot bearing to the same bellhousing surface of the block is .64" - BUT this is with a pilot bearing that sits .157" proud of the crankshaft rear face.
I have another new pilot bearing here that only sits .102" proud - so there can be some variation between bearings.
Pilot bearing dimensions are -
OD - 1.38" (shoulder dia. is 1.44")
ID - To suit .669" dia. pilot tip
Length to underside of shoulder - .575"
Underside of shoulder to outer end, as mentioned above.
Hope this gives what you need Gary.
Thread Starter
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FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
OK - got there, Gary.
Just so you know (as it affects dimension #1), the flywheel on this 302 has been refaced & measures .942" from the rear (friction) face, to the front machined face, which pulls up to the crankshaft.
Also, if it makes any difference, this is an E7TE block, with a one-piece rear seal crankshaft.
1. The distance from the friction face of the flywheel to the machined bellhousing surface of the block is 1.208"
2. The distance from the rear of the pilot bearing to the same bellhousing surface of the block is .64" - BUT this is with a pilot bearing that sits .157" proud of the crankshaft rear face.
I have another new pilot bearing here that only sits .102" proud - so there can be some variation between bearings.
Pilot bearing dimensions are -
OD - 1.38" (shoulder dia. is 1.44")
ID - To suit .669" dia. pilot tip
Length to underside of shoulder - .575"
Underside of shoulder to outer end, as mentioned above.
Hope this gives what you need Gary.
Just so you know (as it affects dimension #1), the flywheel on this 302 has been refaced & measures .942" from the rear (friction) face, to the front machined face, which pulls up to the crankshaft.
Also, if it makes any difference, this is an E7TE block, with a one-piece rear seal crankshaft.
1. The distance from the friction face of the flywheel to the machined bellhousing surface of the block is 1.208"
2. The distance from the rear of the pilot bearing to the same bellhousing surface of the block is .64" - BUT this is with a pilot bearing that sits .157" proud of the crankshaft rear face.
I have another new pilot bearing here that only sits .102" proud - so there can be some variation between bearings.
Pilot bearing dimensions are -
OD - 1.38" (shoulder dia. is 1.44")
ID - To suit .669" dia. pilot tip
Length to underside of shoulder - .575"
Underside of shoulder to outer end, as mentioned above.
Hope this gives what you need Gary.
Cargo Master
Joined: Aug 2007
Posts: 2,558
Likes: 69
From: New Zealand
Have a great day!
Thread Starter
|
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Hey Gary,
I can't believe you don't have this info yet. I wondered out to the garage and pulled the flywheel I purchased for my project. It's a 351W based 408. The flywheel thickness appears to be just about 63/64". I didn't have a caliper, but my trusty combination square came up between 31/32" and 1.00". Does that help at all?
Ron
I can't believe you don't have this info yet. I wondered out to the garage and pulled the flywheel I purchased for my project. It's a 351W based 408. The flywheel thickness appears to be just about 63/64". I didn't have a caliper, but my trusty combination square came up between 31/32" and 1.00". Does that help at all?
Ron
More Turbo
Joined: Oct 2009
Posts: 731
Likes: 6
From: Jonesborough, TN
Hey Gary,
Having my post missed is not a problem. Breaking my kneecap, Saturday, now that's a problem. Think Mr T's prediction for the fight in Rocky III, looking directly into the camera and saying, "Pain".
That's where I live now. I am so thankful for narcotics. Shouldn't need surgery, but won't be doing much work on the truck for probably about 6 weeks. 
Later,
Ron
Having my post missed is not a problem. Breaking my kneecap, Saturday, now that's a problem. Think Mr T's prediction for the fight in Rocky III, looking directly into the camera and saying, "Pain".
That's where I live now. I am so thankful for narcotics. Shouldn't need surgery, but won't be doing much work on the truck for probably about 6 weeks. Later,
Ron
Moderator
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
I'm looking for some measurements from a 302/351W with a true flywheel on it, not a flexplate. The measurements are to determine if a small-block input shaft for a ZF5 would resolve some of the issues when mating one of the 460 versions of the ZF with a 351M/400.
Specifically, I'm looking for:
Or, if someone has just the flywheel, I need the distance from the rear of the crank pocket to the rear face of the flywheel. IOW, the thickness of the flywheel less the depth of the crank pocket. That's because I have a 351W which I can measure and, with your dimensions, figure it all out. Oh yes, I'd like the dimensions on the pilot bearing as well.
Thanks in advance!
Specifically, I'm looking for:
- The distance from the rear face of the flywheel to the rear face, the tranny-mounting flange, of the block
- The distance from the rear of the pilot bearing to the rear face of the block.
Or, if someone has just the flywheel, I need the distance from the rear of the crank pocket to the rear face of the flywheel. IOW, the thickness of the flywheel less the depth of the crank pocket. That's because I have a 351W which I can measure and, with your dimensions, figure it all out. Oh yes, I'd like the dimensions on the pilot bearing as well.
Thanks in advance!
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Thread Starter
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FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Hey Gary,
Having my post missed is not a problem. Breaking my kneecap, Saturday, now that's a problem. Think Mr T's prediction for the fight in Rocky III, looking directly into the camera and saying, "Pain". That's where I live now. I am so thankful for narcotics. Shouldn't need surgery, but won't be doing much work on the truck for probably about 6 weeks.
Later,
Ron
Having my post missed is not a problem. Breaking my kneecap, Saturday, now that's a problem. Think Mr T's prediction for the fight in Rocky III, looking directly into the camera and saying, "Pain".
That's where I live now. I am so thankful for narcotics. Shouldn't need surgery, but won't be doing much work on the truck for probably about 6 weeks. Later,
Ron
1307202127 S542 INPUT SHAFT, 27T 9 1/2" ***
1307202128 S542 INPUT SHAFT, 34T 9 5/8" ***
1307202126 S542 INPUT SHAFT, 27T 11 3/4" ***
And, since the diesel variety is said to have a 4.14 first gear as opposed to the 5.72 of the two gas configurations, I'd say the 34 tooth shaft is for the diesel. That would make one of the other two for the 460 and the other one for the small-block. But, could the small-block one be 2 14" longer?
Anyway, that's the impetus for this exercise. I'm not sure I want to disassemble the tranny to change the input shaft, but I would like to know what the options are. So, I'm using these dimensions on CAD to try to figure it out.
Thread Starter
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FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
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