Lifter + con rod info

[King ford]

greetings to all of you flatty guru's...two questions...do 60 horse and 85-90 horse v8 's use the same lifters and will 8ba connecting rods ( with the insert bearings ) work in a 59 ab with the 59ab crank?

[Ol' Ron]

The lifters are smaller in diameter. The 8BA rods and bearings will fit the 59 crank, but it has one oil hole for both bearings. I wouldn't recommend it

[Ralph Moore]

As Ron says, must use an 8 BA crank, and if it's a Merc crank, you must change Pistons as well.
But you can use 59AB rods(29A) and full floating bearings on an 8BA crank.

[4ford]

that's what an guy just suggested me to use 8ba crank and free floater bearings... better oiling two holes better than one...???

[Ol' Ron]

Unless you know how to set up floaters, I'd stay away from them. Besides, they're very expensive.

[King ford]

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Thanks a bunch for the info guys! I knew I would get good info here,, I always want to know why not just yay or nay and the oiling hole issue makes perfect sense ...thanks again!

[Bluebell]

What Ron hasn't explained is that the oil hole in the big end journal is in the middle which is fine for the full floating bearings, but when you have two separate pairs of (lock in) bearings (side by side) on that journal the lube oil is effectively going to pee out between the two, and all you hard work and money is going to be wasted in short order.
That's why the crank that is designed for the lock in bearings has two holes, so that the oil enters at the centre of each bearing.

[Ol' Ron]

Rod side clearance is only .005/.0010 in a street engine so the single oil hole would probably work. I've know of several people that did this and so far haven't had any triouble?? However, this could lead to a bearing failure. One is in an old fire truck.

[Walt Dupont--Me.]

I've disassembled 59 engines that had 8bA rods and locking bearings, Looked like they had a lot of miles, I wouldn't recommend it. Walt