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Hi,
I have a 401 hp solid lifter 390HP sideoiler from a 1964 (maybe 62) police interceptor, the six pack is long gone.
I pulled it out of my truck with the intention of rebuilding it and putting it in a kit car or old truck. However theres this guy who wants to buy it but I don't know what it's worth.
I was told that the 390 sideoiler is the same block as the slightly less desireable 427 sideoiler, as opposed to the highly desireable model. I believe this difference is related to the lack of side bolts going into the maincaps.
It needs to be rebuilt, but I ws told not to accept less than $800 for it but that it could be worth more. I really don't think I'm going to sell but would like to have an idea of it's value.
I've never heard of a 390 "sideoiler", but don't go by me, I'm new to FE's.
However, I can tell you that the 427 sideoiler is the desireable block as opposed to the 427 topoiler (also referred to as a centeroiler). I would take either, mind you - it's just that the sideoiler is the rarer of the two.
I believe that most (but not all) 427's came with the cross-bolted mains. If I am incorrect about the cross bolts, I'm sure to be corrected soon.
Do a search on theis forum and you will find much info on the 427. Also, go to ebay motors and search there (include auctions that have completed). That should give you a feel for the motor's worth.
Just for kicks, I searched ebay and found these sideoiler blocks
No such thing as a 390 sideoiler. Nice find though. Not sure what its worth without the intake. I have seen the intakes with all the carbs attached go for over $1500. The rest of the engine is nothing too special. I don't have much info on the heads but I do know there were still regular 390 sized valves in them.
Well what I do know about this particular engine is that the webbing in the lower skirt is heavier than a standard 390, but it is not drilled for the side bolts. I have a FE Performance engine book that has a short blurb about it and I swear it says it was a side oiler as well as being told by a mechanic in Coleman Alabama that fixed a lifter that had backed out,,,,, the adjustable rocker got loose let the rod slip out and the lifter kicked up into the gallery, easy fix just didnt have all my tools,,,,but he said that had the block not been a side oiler all the oil would have dumped into that hole and the engine would have seized.
Maybe I actually have a 427 block, which would make me
I will look in that book tonight (if I can find it), guess I should go down and get the codes off the block again and see what can be determined from that.
If I remember what I read in the Steve Christ book, the 390HP had the thicker webbing and was made in 61 and 62 (or 62 and 63). It had solid lifters and therefore no oiling passages for them. That may be what your mechanic meant by "sideoiler". He may have been using 427 terminology to describe this block since he wasnt seeing any holes to oil the lifters. Just a theory. I do not believe it was crossdrilled, either.
I'm pretty sure that if you don't have crossdrilled main caps, you don't have a 427.
A sideoiler 427 will have a hump running lengthwise down the block on the left (driver) side. This is the oil passage....
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