• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Marking on 351C


GarlValron

New Member
Joined
May 8, 2024
Messages
3
Reaction score
0
Location
Washington
Transmission
Manual
Hey guys,

Been learning about rebuilding a 1971 351C for my ranger and when I was looking over the crank I saw it had a marking that looks like .010.
I was trying to see if its i need undersized bearings for crank and rods, but theirs so much info on the internet about correct size.
Seeing if you all can help.

Main Journals Measure 2.733
Rod Journals Measure, 2.295

Thanks

Garl
 

Attachments

Last edited:


pjtoledo

Well-Known Member
Supporting Member
U.S. Military - Veteran
Joined
Oct 5, 2007
Messages
5,817
Reaction score
3,480
Location
Toledo Ohio
Vehicle Year
20002005199
Make / Model
Fords
Engine Size
3.0 2.3
ford performance book has 2.749 and 2.311
that's .016 difference
 

GarlValron

New Member
Joined
May 8, 2024
Messages
3
Reaction score
0
Location
Washington
Transmission
Manual
So, I guess i need to either get a new crank, or grind that one down to .020ths and get undersized mains at .020 under? Youll have to forgive my ignorance, im still learning and theres not many machine shops around me that deal with lower end.
 

GarlValron

New Member
Joined
May 8, 2024
Messages
3
Reaction score
0
Location
Washington
Transmission
Manual
Or is my math off on this....If i have 2.733 and get .010 undersized bearings, that puts me at 2.743... and if you said is supost to be at 2.749, that puts me at .0006 clearance? Thats ok for a street engine from Scats website?
 

Sponsored Ad


Sponsored Ad

Members online

TRS Events

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Rick W
October Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

25th Anniversary Merch

Follow TRS On Instagram

25th Anniversary Sponsors

TRS-3 Ford Ranger Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top