View Full Version : V6 owner in the UK

08-13-2005, 01:36 PM
Dear Sirs,i am installing a buick Turbo v6 in a 1949 chevy 1/2 ton truck,i'm fitting the v6 instead of any v8,to prove a point that the v6 is a very under-estimated engine,that, and to slap a few bums.My problem being the lack of any information over here,what i need to know is what books would be best to go for, to understand the workings and assembly of said engine,ie,a workshop manual,many thanks in advance,John. john@byfleetrodshop.fsnet.co.uk

08-13-2005, 05:33 PM
Factory service manuals area available from several sources.

Look very carefully thru the entire technical section of this website, starting here:


Hope that helps!

08-15-2005, 06:00 PM
I thank you for that kind Sir,i'll see what i can find that will help,also i've just found out,(bearing in mind that my engine was bought in a pile of bits,from someones shed) that the turbo unit is seazed,if i can't free it easily,i'll have to by one new.

08-15-2005, 06:04 PM
Just ran across this on eBay ... looks like a complete set and they are INVALUABLE for keeping the various bits and pieces straight on this car!

http://cgi.ebay.com/1986-BUICK-GN-GRAND-NATIONAL-GENUINE-SERVICE-MANUAL-SET_W0QQitemZ7992700330QQcategoryZ6761QQssPageName ZWDVWQQrdZ1QQcmdZViewItem

08-15-2005, 06:20 PM
Knowing what year setup you have will be critical, of course. The block ID *may* definitively tell you. However, if pieces have been mixed around, it may not. Check carefully to be sure you know what you're working with...

08-15-2005, 06:24 PM
Just ran across this on eBay ...

Great find! But...is his setup an 86-87?

08-16-2005, 12:21 PM
Gentlemen,the engine is pretty much all there,but in bits,the turbo is still attached the manifold,the carb looks fine and all the internals of the engine are there,along with this engine came new:Pistons,rings, bearings,gaskets,cam,lifters and timing-chain.The previous owner also included a new Edelbrock inlet manifold(to remove the turbo and just put a carb) but i wish to retain the turbo.My problem,on the engine,is not knowing what year or anything else about it,i looked for id numbers on the bare block,but could not find any other than the casting numbers 1261787 on the top of the block near the gearbox mounting flange,also,3.3-1 in large numbers,on the block near the oil dip-stick hole.If anyone could tell me what it is,Great !!!!

08-16-2005, 12:28 PM
Ok ...

The carb is a huge give away ... pre-84 engine.

Probably has 14 bolts in the oil pan (another clue ... later engines had 20).



1261787 looks to be a 1978 block and probably an early even fire version (right after the conversion to even fire from odd fire).

I'd bet the large stamping is actually 3.8 by the dipstick (usually the displacement is cast there).

Something like this might help:

http://cgi.ebay.com/ebaymotors/1978-Buick-Service-Manual_W0QQcmdZViewItemQQcategoryZ6761QQitemZ79930 67353QQrdZ1

Based on that, you want to look for a set of 1978-1983 service manuals, since those engines were pretty much a "family" with the intake and turbo set ups. Also, you'll be looking at maybe 180 HP or so ... you might want to look into putting later (86/87) heads, headers, and maybe a stand alone fuel injection set up on it (if it's in the budget).

08-17-2005, 05:57 PM
Thanks for the link,i've asked the seller if the manual covers the turbo and am just waiting for a reply.Because it's an early-ish engine,is it worth persuing it further,ie getting the turbo rebuilt and throwing money at it ,i mean,is agood engine to rebuild ?

08-18-2005, 10:22 AM
It's a good engine and relatively simple ... however, it depends on your goals. For a show car/cruiser, it'll have good torque and be unique ... however, it'll probably be a bit low on horsepower if the car is heavy. Without the electronic engine controls and such on the later motors, you will be limited on how much boost you can use and subsequently the horsepower levels.

08-19-2005, 02:50 AM
The idea is to put it in a 1949 chevy 1/2 ton truck,which should weigh less than a standard saloon car.Are the earlier engines that low on horsepower,or would it pay to look for a later model ?

08-19-2005, 10:53 AM
There's a lot you can do, but I think I'd get a later set up and run an aftermarket standalone ECU on it.... just because of easier parts availability and general knowledge about it. The earlier stuff is pretty simple, but parts are hard to find for the special pressurized carbs and such.

Comes down to money, expertise, and intended use (doesn't it always?!? :D)

09-05-2005, 09:01 AM
On this wednesday,i'm going to be picking up,yet another v6 lump,turbo and box.This one is fully rebuilt but don't know what year it is ether,i'll let you know when i get it and reel off the numbers,the guy selling it could'nt get it to run properly,i'm hoping to have more luck/time than he.(one hopes!!!)I am still determined to use a buick because of the negativity my mates are giving me that it would be a lost cause,being in mind that i could have chose any engine,within reason,i feel this combo should prove a good one,especially with the price of or petrol/gas (around $2.00 per litre) John.

09-06-2005, 01:25 PM
Look for something with factory fuel injection on it ... you'll be way ahead of the game! :yesnod:

09-18-2005, 03:47 PM
The new engine,came with a,what looks like a management module.Everything seems to be there,the bad news is that,allthough i was sold it as rebuilt,the seller had what's know over here as,my pants down.In other words i was ripped off.I started to dissmantle the block to see what had been done to it and to also clean the horrible cream paint on it .The engine may have had new pistons at some time,but the push rods looked rusty,the cam and timing chain looked resent.The bad bit was yet to come,the sump and oil pick-up,was absolutely sludged-up ,i'm gutted ! The only good thing is that,it has a complete stainless-steel exhaust header system and the turbo is'nt seized.I'll let you know what numbers if any are on the block.Ps with my earlier engine,i've got a brand new Edelbrock performer-plus,camshaft part number 5487.I phoned Edelbrock,they said that they have'nt tried this cam on a 'turbo' engine so could/could'nt say if it would work.So gentlemen,what camshaft would work best for the turbo'd engine ? Oh yeh !! i'm going to put a gear-drive so a standard cam front fitting won't work. Ta !!

09-18-2005, 11:31 PM
Gear drive will send a knock sensor system crazy ... and will require a custom front cover and such.

Let's see what the numbers show and then we can go from there.

Basically a good cam will have a little more lobe separate, to keep cylinder pressures up and prevent boost just blowing thru the cylinders.

Most "turbo" cams are something along the lines of the stocker here:


Advertised Duration :258/262
Duration at .050" lift :192/196
Lobe Separation107 degrees
Overlap38 degrees