It cost me $400 to have my Hydramatic overhauled.
Jim V.
At 02:34 PM 3/6/02 Wednesday, Hanlon, Bill wrote:
>I agree with all that Bob says except that the pre-64 Pontiac V8's used
>a very different water pump (early 4 bolt vs. later 8 bolt) and coolant
>distribution system (early output from the water pump went via hoses to
>inlets on the heads vs. later that pumped directly into the front of the
>block). If you are trying to keep it stock looking anyone with an eye
>for Pontiac V8s would know the difference.
>
>If you are not sticking to totally stock, the later V8 with TH350 or 400
>would be a good idea. Overhauling a dual-range Hydra-Matic would break
>most Enron employee's 401K plan. Rebuilt TH350s are cheap. Given that
>the Napco probably has 4.56 gears you may want to consider a
>transmission with an overdrive high gear.
>
>But then I'm perfectly happy with my 57 347" V8 with Hydra-Matic and
>3.08 rear gear.
>
>-----Original Message-----
>From: Robert.Heil@hellausa.com [mailto:Robert.Heil@hellausa.com]
>Sent: Wednesday, March 06, 2002 11:26 AM
>To: mark@noakes.com
>Cc: napco4x4@yahoogroups.com; oletrucks@autox.team.net;
>owner-oletrucks@autox.team.net
>Subject: Re: [oletrucks] 336 V8 and Hydramatic
>
>
>Instead of a 336, why not use a Pontiac 347 or better yet a 389 or 400
>or
>421 or 428 or 455? Especially with the 389 or larger bore versions,
>your
>torque ratings increase significantly, and are identical dimensionally
>to
>the small bore small valve V-8 Pontiac engine that came in your truck
>originally. No one could tell by looking, unless they read the head
>casting number.
>
>As for the transmission, you are going to need a short-tail 400
>Hydramatic
>out of any GTO, Cutlass, or Skylark from 1968 - 1972 or any 400 Firebird
>from '68 thru 1978. Rusty GTO's can be had for peanuts compared to what
>you might pay for these parts individually.
>
>Bob Heil
>'51 3600 in pieces
>
>
>
>
>
> mark@noakes.com
>
> Sent by: To:
>napco4x4@yahoogroups.com,
> owner-oletrucks@auto oletrucks@autox.team.net
>
> x.team.net cc:
>
> Subject: [oletrucks]
>336 V8 and Hydramatic
>
>
> 03/05/02 07:29 PM
>
> Please respond to
>
> mark
>
>
>
>
>
>
>
>
>
>To NAPCO and ole-trucks lists:
>
>I have previously mentioned to the NAPCO list that I just picked up a 58
>GMC 1/2 ton
>NAPCO, big back window cab, fleetside, with 6 cylinder, 3 speed manual,
>and
>original
>power steering.
>
>I would like to consider converting this truck to an original 336 V8 and
>Hydramatic
>transmission, keeping the NAPCO and power steering, of course.
>
>So I need to find a good 336 V8...anyone have one that they want to get
>rid
>of?
>
>And I'd like to pick up a Hydramatic. My brother Brian has a spare for
>his
>57 Cameo
>(265 V8), and what I'm thinking is that we would pick up another
>Hydramatic
>and have one
>spare between us.
>
>Are there any differences between the GMC Hydramatic and the Chevy
>Hydramatic that would
>make this not work (other than the bell housing)?
>
>Anyone have a spare Hydramatic that they want to get rid of? I already
>have all the
>linkage, column shifter, etc. Just need the trans.
>
>I'd prefer the the southeast as trying to go get one further out than
>that
>can be a
>problem (shipping or travel to get it).
>
>Thanks,
>
>Mark Noakes
>58/56 Chevy Suburban
>58 GMC 1/2 ton NAPCO
>59 GMC Suburban basket case
>Knoxville, TN
>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
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
Jim V.
1958 GMC Suburban Carrier Pickup (Cameo style) - V8 Hydramatic
http://www.angelfire.lycos.com/mi2/jrvvehicles
dcvjrv@covad.net
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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