235/261 or 230/292 in '63 4x4's?
 

One more question like the last one...

I've always heard that '63 4x4 trucks still used the 235 or 261 inline sixes, but from what I'm reading they were supposed to have 230's or 292's.

https://gmheritagecenter.com/docs/gm...olet-Truck.pdf

It says 230 and 292 for both C and K series trucks, and has no mention of the 235 or 261 existing anymore.

Anyone?

Re: 235/261 or 230/292 in '63 4x4's?
 

All the early factory 63 4wd ive seen have the 235's if they have a straight six. They refer to a 1st and 2nd series truck depending on serial #.

The 230 and 292 was 2wd models.

Re: 235/261 or 230/292 in '63 4x4's?
 

K series was 4wd. Seems like the very early "1st series" '63 4x4's were the ones that got 235's? I'll have to dig around more when I get back to the computer.

Re: 235/261 or 230/292 in '63 4x4's?
 

Some more factory literature that shows the 235 or 261 for early trucks

Re: 235/261 or 230/292 in '63 4x4's?
 

Thanks for posting that; more interesting info. It appears to be dated '62, which would fit in with the early '63 trucks having 235's and 261's.

Re: 235/261 or 230/292 in '63 4x4's?
 

I have a 60 K20 that originally came with a 235. So it goes back that far.

Re: 235/261 or 230/292 in '63 4x4's?
 

Yes, all trucks until '63 had them; the first appearance of the 194-292 series was the 194 in the '62 Nova.

All the 2wd stuff had 230's or 292's in '63, but it seems that the early '63 4x4's had 235's or 261's, and later on in the year they had 230's and 292's like the 2wd trucks did.

Re: 235/261 or 230/292 in '63 4x4's?
 

Huh. The one from August '62 says 235/261, and the one from December 1st '62 says 230/292.

Re: 235/261 or 230/292 in '63 4x4's?
 

Late 62 was the first year for the 230, 250 and 292. 235 had been out since 54! lol! 261...heck..I forgot when that thing came out...started in the big rigs and then later on was an option for pickups. Its funny...the 194 wasn't available again for pickups until 66...wonder why they thought of that? Guess it was a tad better then the 153 4 banger! Especially in a C20 truck. :dohh:

Re: 235/261 or 230/292 in '63 4x4's?
 

they also changed the ft brake set-up on later 63 4x4. don't know when the change was month wise.

Re: 235/261 or 230/292 in '63 4x4's?
 

TJ - In 1954, a 261-cubic-inch (4.3 L) truck engine was introduced as an optional Jobmaster engine for heavy-duty trucks. This engine was very similar to the 235 engine, except for a different block casting with a larger piston bore of 3.750” or 95.25 mm, two extra coolant holes (in the block and head) between three paired (siamesed) cylinders, and a slightly higher lift camshaft. This engine was offered as a step up from the 235 starting in 1954. It was offered in parallel with the GMC V6 engine in 1960 until 1963, when it was discontinued. The 261 USA truck engine had mechanical lifters and was available from 1954 to 1962.

The 235 and 261 truck engines were also used by GMC Truck of Canada (GMC truck 6-cylinder engines were also used in Canada). The 1955–1962 Canadian full-size Pontiac car had a standard 261-cubic-inch engine that had hydraulic lifters. This engine was not sold in the USA, but was very similar to the USA truck 261.

The 261 engines were also used in light trucks and the Chevrolet Veraneio from 1958 to 1979 in Brazil.

Re: 235/261 or 230/292 in '63 4x4's?
 

that is just what it is supposed to be. new model year comes avail what sept. production starts for that year when late july. early production got the 235 and in dec 62 they are now into the later production and the 230 and 292 i6 are introduced into the 4 x 4 line up. just like the books says

ron

Re: 235/261 or 230/292 in '63 4x4's?
 

The new 194 (not to be confused with the older series) was introduced in the '62 Nova as the first of the "3rd generation" sixes, and was not actually used in the trucks (neither was the 153). Trucks had a 230 or 292 from '63-'65 (model year), and the 250 came out and replaced the 230 in the '66 trucks. :chevy:

Yes, I noted this in my previous post. Most just say that '63 4x4's came with the older engines, though; no one ever mentions it's actually a mid-year change and they used both in '63--that's my point (perhaps "huh" wasn't really the best choice of words for me to use there... :lol:).

Re: 235/261 or 230/292 in '63 4x4's?
 

i believe the 261 also came in the early 50's cadillac.

Re: 235/261 or 230/292 in '63 4x4's?
 

Cadillacs came with a V8
261 were mainly used in GMC trucks and Canadian Pontiacs. not sure whether 55 or 57 they were introduced. we; my brother and I put a 67 261 Pontiac into his 32 chev sedan in 1961. it was a nice little motor in that car . the 32 did become mine a year later
ron

Re: 235/261 or 230/292 in '63 4x4's?
 

My 64 C20 has the option of a 153 4 cylinder. And if you want proof I can give it.

Re: 235/261 or 230/292 in '63 4x4's?
 

My trucks have that plate, too. :)

https://gmheritagecenter.com/docs/gm...olet-Truck.pdf

There it is from GM themselves. If you scroll to page 17 (21 on your computer), they list the suffix codes for the different engines; the 153 was there for a P10 stepvan. They just used that generic plate on a bunch of stuff.

:chevy:

Re: 235/261 or 230/292 in '63 4x4's?
 

I bet the performance was still pretty non-existent, though. :lol:

Re: 235/261 or 230/292 in '63 4x4's?
 

LOL! Well, I'll bet if someone did order the 153 for a C20..he obviously wouldn't be in any big hurry to even get outta the drive way!! LOL!!

Re: 235/261 or 230/292 in '63 4x4's?
 

Are you serious? The plate " For Economical Transportation " is a generic plate used on various light duty models. I can assure you the smallest engine was the 230 in a '64 C10 or C 20.

Re: 235/261 or 230/292 in '63 4x4's?
 

I think that's the plate...its on the driver's side kick panel...gives the gross weight rating as well. I believe this is what it read..

283 (145 at 4000)

292 (153 at 3600)

230 (125 at 4000)

230 (120 at 3600) (or 4000 can't remember.)

153 (95 at 4000).

That's what the plate said...I'll go an take another gander at it an make sure I got all the specs right. :chevy:

Re: 235/261 or 230/292 in '63 4x4's?
 

As me and factorystock both said, it's a generic plate; the fact a 153 is listed does not in any way mean that a 153 was an option for your truck.

The link I provided is from GM themselves, and you can read about it for yourself there. The 153 was listed on the generic plate because the P10 stepvan used it in '64.

:chevy:

Re: 235/261 or 230/292 in '63 4x4's?
 

Ok..but it woulda been hilarious if it was an option! lol!

Re: 235/261 or 230/292 in '63 4x4's?
 

:chevy: