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Author
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Topic: 351C 2 bolt .
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Hans olsson
Gearhead Posts: 622
From: Sweden
Registered: Apr 2000
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posted 11-07-2004 01:14 PM
   
I have a question about the main bearing bolt-hole.Two of them goes through at the bottom. Is this usual?Hans
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- VIN 1F05M139343
- 71 Mach 1 Ram-Air
- 351C 4V 285 HP
- F-G/Stock Aut
- Stockers are way cool!
[This message has been edited by Hans olsson (edited 11-07-2004).]
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steve'66
Gearhead Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 11-13-2004 05:09 PM
bump,
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Ryan Wilke
Gearhead Posts: 2060
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 11-14-2004 08:24 AM
ttt
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fastford34
Gearhead Posts: 836
From: penna
Registered: May 2002
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posted 11-18-2004 05:03 PM
i just checked my spare block (no lights in the garage & its almost dark now), i did not see any of the main bearing bolt holes that go completely thru. i will take a better look this weekend. ------------------
34 coupe powered by 351 c 4v
keith
it`s nice to be important but more IMPORTANT to be nice.
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kid vishus
Gearhead Posts: 6098
From: middle of NC
Registered: Oct 2000
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posted 11-18-2004 08:12 PM
I've never looked either. And right now, I'm not sure my one good block is in a place that is accessable. Plus, it's a 4 bolt block if that makes a difference.
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clevelandstyle
Gearhead Posts: 1035
From: Connersville, IN
Registered: Jul 2001
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posted 11-18-2004 09:09 PM
Mine do NOT go through.------------------
Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 408C 4V, best time to date is 10.50 best MPH 127
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fastford34
Gearhead Posts: 836
From: penna
Registered: May 2002
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posted 11-20-2004 06:58 PM
all bolt holes do NOT go thru.
hope this helps.------------------
34 coupe powered by 351 c 4v
keith
it`s nice to be important but more IMPORTANT to be nice.
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Lightning Fast Fords
Gearhead Posts: 122
From: Charlotte , N.C. USA
Registered: Aug 2004
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posted 11-20-2004 11:27 PM
I cannot imagine any scenario that would warrant the holes being drilled all the way through.I have never seen a C done this way...and I have nver seen a Converted 2 to 4 Bolt 351C or 351W done this way either. If memory serves...the outside bolts that make a 4 Bolt Main Cap a 4 Bolt are shorter than the vertical Main Cap bolts to begin with. I have only converted 1 2 Bolt Block to a 4 Bolt Block...and from most of what I've read..it's rarely if ever warranted unless you are a very dedicated High RPM Racer all the time. Some here are...and that's cool , but for the average guy whom just enjoys extra power for a street car...the expense is debateable as to it's actual worth? Before I get blasted for my comments , I realize the benefits of a 4 Bolt in regards to harmonic balance and end-play vibration dampening...and that is the aspect that sold me on the expense of converting my 2 Bolt 351C to a 4 Bolt. ------------------
2000 Crown Victoria (Performance and Handling Package. 1994 SVT Ford F-150 Lightning 1988 Turbo Coupe Thunderbird (5-Speed) 1988 Crown Victoria Police Package (Modified to the max) 1968 Torino GT (Fastback) 351C 4V with B&M C6 Tranny
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kid vishus
Gearhead Posts: 6098
From: middle of NC
Registered: Oct 2000
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posted 11-21-2004 08:45 AM
No blasting from this camp.  I have said over and over again that 4 bolt mains arent needed in a cleveland unless it is a circle track motor or one that 'sees' 8500+ rpm. I feel they are just like the oil by-pass line that feeds from the front of the block to the back. Not worth the expense for about 90% of the guys running clevelands. The cylinder walls will give up long before either of those are required for most folks (myself included.) Every motor I have built used 2 bolt mains. Strange thing is, either I wasn't having issues with it, or was just ignorant to what I was looking for, I never could find signs of the main caps moving around like so many people complain about.
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Hans olsson
Gearhead Posts: 622
From: Sweden
Registered: Apr 2000
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posted 11-21-2004 11:09 AM
Thank you for the replys.
It looks like there was to little material around the bolt hole and the drillbit broke through at the bottom of the hole.
We have run the block with no problem.
I think it has looked like this all the time i just recently discovered it.Hans ------------------
- VIN 1F05M139343
- 71 Mach 1 Ram-Air
- 351C 4V 285 HP
- F-G/Stock Aut
- Stockers are way cool!
IP: Logged |
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