.100 is well within the overbore limits of a 235, unless the block has a
serious core shift. In fact you can safely go to .125 on most of these old
engines. The problem is that pistons and rings are difficult to find in that
oversize, although they are available from Ross Pistons and Patricks, as
well as Stovebolt.
Unless your machinist has done this before, I think you would be better off
with a new block. Good 235 Powerglide cores should be available for far less
than $150, at least in this area.
Jack / Winter Park FL
----- Original Message -----
From: Antonio R. Tijerino <antonio@innercite.com>
To: Ole Trucks <oletrucks@autox.team.net>
Sent: Wednesday, July 07, 1999 1:04 AM
Subject: [oletrucks] Engine questions.
> Before I post my question I would like to give a little background. My
> '53 Truck came with a 235 engine that was still sitting on the engine
> bay, but it was pretty much all apart, the head was in the bed and it
> did no have the peripherals. I did not think this engine was usable, so
> I decided to get me another engine. I got a '54 235, this engine was
> complete, but I did not know the condition of it, I took it apart and
> took to the machine shop, the machine shop guy says that the block has
> been over bored too many times, as a matter of fact the pistons were
> 0.100 oversize. The machine shop told me he can get me a good block for
> an extra $150.00. I went back to my shed and looked at the original '53
> engine that came with the truck, I took it apart and noticed that the
> pistons were 0.040 oversize, not only that, but the bearings and
> journals all look pretty good, also while cleaning the block I found an
> old engine re-manufacturing company tag from a place in So. Cal.
> My question is the following: Can I use the '53 block (original dipper
> engine) with the crank and cam from the '54, also the connecting rods
> and convert it from a dipper to a full pressure engine?. The machinist
> seems to think that this is OK, he told me that the only conversion that
> cannot be done is to convert a solid lifter engine to a hydraulic lifter
> engine. Are there any major differences between the two years other than
> the oiling system? I noticed that the main bearings are not the poured
> type but the insert type.
>
> Thanks,
>
> Antonio R. Tijerino
> '53 3100
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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