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10-11-2003, 09:02 AM
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CC Member
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Join Date: May 2002
Location: Cumming,
GA
Cobra Make, Engine: former Unique289
Posts: 784
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Not Ranked
427 Side Oiler vs Top Oiler
Here we go... which is better? stronger? more durable? differences +/- ??
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10-11-2003, 09:07 AM
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CC Member
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Join Date: Mar 2003
Cobra Make, Engine:
Posts: 1,514
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Not Ranked
Why Chill? Your a SB (Small Balls) guy.  |
10-11-2003, 09:54 AM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Seattle, WA,
Posts: 1,389
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Not Ranked
Chill,
A center oiler has no superior aspects to a side oiler, exept being somewhat less expensive.
For street use, a center oiler probably has no inferior aspects either.
KK
__________________
Foolish consistancy is the hobgoblin of tiny minds
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10-11-2003, 11:12 AM
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CC Member
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Join Date: May 2002
Location: Cumming,
GA
Cobra Make, Engine: former Unique289
Posts: 784
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Not Ranked
Cracker...SB...funny guy...
...you just never know when that next project calls.... |
10-11-2003, 01:47 PM
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CC Member
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Join Date: Sep 2002
Location: Chicago, Oscar winner, my kind of town,
Posts: 614
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Not Ranked
The side-oiler might be better if the rumors of more extensive quality control checks at the factory are true. Better checking for thin points in cylinder walls, possibly.
Otherwise, as long as they're both seasoned blocks and not NOS ones that've been hanging off an engine stand for the last 30 years, they should be pretty equivalent today. All the crossbolting, and even the oiling pattern can be duplicated and bettered today given access to a good FE shop.
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10-11-2003, 02:14 PM
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CC Member
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Join Date: Aug 2002
Location: Dacula, (Atlanta),
GA
Cobra Make, Engine: Unique 427 SC, Southern Automotive 427W Stroker
Posts: 1,649
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Not Ranked
Clyde, I know where there's a brand new side oiler block still in the original factory crate. Be the first on your block!
__________________
After a good hard ride.....oil pressure is over 50, temp is below 190, she idles and no new dents. LIFE IS GOOD!
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10-11-2003, 03:28 PM
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CC Member
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Join Date: Jan 2000
Location: Grapevine,
TX
Cobra Make, Engine: Former Owner/Builder of KMP142 427 Sideoiler, Tunnel Wedge, Aluminum heads, etc.
Posts: 702
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Not Ranked
The main difference in Center Oilers vs Side oilers is that the Side Oilers oiling system was radically redesigned to oil the main bearings first, then the cam bearings, instead of the other way around.
The main "advantage"?
............Bragging rights
Bud  |
10-12-2003, 10:19 AM
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CC Member
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Join Date: May 2002
Location: Cumming,
GA
Cobra Make, Engine: former Unique289
Posts: 784
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Not Ranked
TR... new... 427 block? Its not chrome is it??? |
10-12-2003, 10:36 AM
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CC Member
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Join Date: Aug 2002
Location: Dacula, (Atlanta),
GA
Cobra Make, Engine: Unique 427 SC, Southern Automotive 427W Stroker
Posts: 1,649
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Not Ranked
You guys are killing me. But wait, twill be I who walks away with the Cobrachrome award at the next cruise in. It's also killing me getting on a plane while John is doing surgery on my ride. Oh well, it will give me an opportunity to put my mind off of where I am.
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After a good hard ride.....oil pressure is over 50, temp is below 190, she idles and no new dents. LIFE IS GOOD!
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10-12-2003, 01:53 PM
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CC Member
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Join Date: Jul 2002
Location: Portland, OR area,
OR
Cobra Make, Engine: Contemporary CCX33868 Sold. Just "playin' the boards now."
Posts: 634
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Not Ranked
Here's my fourbits worth.
When the 427 first came out (center oiler) it had a bad habit of spinning bearings and losing #7 rod through the side of the block. Not a good thing for NASCAR racing.
The side oiler, as stated above oils the crank first. A perfect fix? No, just a lot better. The crankshaft was redesigned also and used screw in plugs on the rod throws instead of soft plugs and snaprings.
The side oiler was a complete package, not just a different block. Medium riser heads, LeMans capscrew rods, sidewinder manifolds and better camshaft profiles were the main differences.
Ford still had a weakness for sodium-filled valves though and a good many engines were destroyed by the valves losing their heads. Notably, this happened when the engines had sat for extended periods.
Now with all of this blather, I would share that I've made use of both engines and can safely say, you won't be able to tell the difference in a street driven car, uless you insist on free winding the engine to 8 grand in your driveway.
Given today's technology for hard parts such as rod bolts, rocker arm geometry, cam profiles, stainless steel valves and particularly....today's engine lubricants, either of these engines will make a Cobra scoot quite nicely thank you very much!
I had a real Side Oiler in my car, but truthfully it had a lot more to do with braggin' rights than anything else. A little peace of mind didn't hurt either....I did some dumb stuff and abused the engine at times, but it never whimpered.
Al
__________________
"If some is good, more is better.
And too much is just enough."
--Carroll Shelby
Last edited by A Snake; 10-12-2003 at 01:56 PM..
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