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In laymens terms the difference is
The side oiler oils the rods & mains first then the top of the engine ie valve train.
The regular FE like a 390 or 428 oil the top of the engine first and the rods and mains last and that what has caused many bearing failures at higher RPM. Also the FE mains are drilled so that once a bearing is installed there can be as much as half the oil hole not matching the hole in the bearing and all FEs should have the oil openings opened up to get full lubricaion to the main bearings. |
Good read!
Thanks Tim |
We're talkin NASCAR motors here, .....not the local stock drag strip machines or street rods.
There are about a kazillion FE motors out there that make great HP and hold up just fine and are not Sideoilers. If you have a legit purpose for a sideoiler...go for it,.... but other than that it's just "pissin rights". Just my opinon, Old Bill |
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I used the same article in the build last year of my 1967 428 FE , then I put in a 5700 chip in the MSD to play it safe . It works great and had no problems . But I would be verrrrrry afrrrrraid to turn 7000 rpm,s .
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I have a solid cam and a SCAT lower end, along with a rev limiter set at 6400 RPM. I try and shift at just over 6000, as there is no real point in going much over that. But ocassionally I bounce off my rev limiter when I'm not paying careful attention. I have no doubt she would waltz past 7000 if given the chance. FWIW, here are my shift points based on my gear ratios and torque curve.
http://www.clubcobra.com/photopost/d...hiftpoints.jpg |
any one out there can tell me how to tell a 390 from a 427,the engine i have is a 65 with 64 heads 6090 G, the block was cast jan 65 (c5ae) also has a aluminum intake#c3ae-9424-e with chrome valve.
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differents between 390 from 427
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Look for the cross-bolted mains that a 427 has. Here's a shot:
http://image.mustangandfords.com/f/8...mage_large.jpg |
As Patrick said, look for the cross bolts (bolt heads) there'll be three of them on each side of the block just above the oil pan rail. If the engine's in the car, jack it up and you should be able to see it from underneath. This'll just indicate whether it's a 427 (could be side oiler or top oiler). Heck it could even be an "cross-bolt" aftermarket mod to a 390 or such too.
Dave |
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The original racing snakes came with 427 side oilers and cross-bolted main bearings. Occasionally 428 top oilers were used though it was totally different engine. But as Carroll Shelby once pointed, it was pretty hard to find difference between 425 and 475 bph if you were not a racing driver!
Vladimir |
common Cobra misconception
vladimirpajevic
Yes, the RACING Cobras may have had side-oilers. But the big block Cobra production cars were split roughly into thirds. The first third had center-oilers, the second third had 428s, and the last third had side-oilers. |
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1.33?
The fourth third? I never did get this new math, anyway.
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