768 replies to this topic

[S pack]

I can't see the document clearly but does the engine number actually say QL? Or is it GL?

Neither can I, however I am trusting the info Anthony posted.

[Dr Terry]

F or F
The rarest Torana engine is the 2850S

I'll say fiction.

 

The rarest engine IMHO would be one of the lo-comp versions.

 

How many lo-comp 2250 engines have you ever seen ? What about the lo-comp version of the 1300 4-cyl ?

 

Dr Terry

[S pack]

I have a low compression 2250 at work., used for basic stuff for high school students , how to change sparks plugs and adjust timing . I didn't think they were fitted to Torana's , I thought the Torrie only got the HC version

The 138 low comp engine number should be prefixed either 2250L for LC Torana up to approx mid 1971, then CC for LC & LJ Torana and HC for LH Torana. 

Edited by S pack, 23 August 2015 - 11:32 AM.

[S pack]

 My Bad, just had a look its

2250H1976  so I gather high compression

Yep high compression 138 engine from a 1969 LC Torana if that is the full engine number.

[rodomo]

Yep high compression 138 engine

What's the point?

[S pack]

What's the point?

That's the sharp bit on the end of your lead pencil.

[rodomo]

I thought is was the front of a ship?

[xu2308]

The Red 308 Engines with the X under the 308 on the Block are these the early L34 Engines, the Yella Terra Guru started work on the Heads for L34 Donks in Sept 1973.

[TerrA LX]

But the funny thing is the Race Team A9X's had the painted bumpers

I assume due to sponsorship as the painted bars have the holes across them for the rubber strips...

 

F or F, prior to production, the Torana was almost going to named the Barina?

[rodomo]

Fiction............................I think?.........................................Barina was for something else

[yel327]

The Red 308 Engines with the X under the 308 on the Block are these the early L34 Engines, the Yella Terra Guru started work on the Heads for L34 Donks in Sept 1973.

 

I'll strand corrected Al but I think those were the engines first developed for F5000 use. 
 

[Shiney005]

The X was cast above the 308, and between the webbing at the rear of the block. Some L34s got them and some didn't.

[yel327]

Here's one for you all, F or F:

 

All Commodore 4.2/5.0L prior to VK are the same block design (TH v 4spd blocks aside and ignoring the obvious differences between the 4.2L and 5.0L blocks).

[TerrA LX]

I think that you you will find that none of the Race A9X's had the bars with the Rub Strip Holes..

They were all 'non strip' bars.. 

That's what i said?

Here's one for you all, F or F:

 

All Commodore 4.2/5.0L prior to VK are the same block design (TH v 4spd blocks aside and ignoring the obvious differences between the 4.2L and 5.0L blocks).

Faulse, you can not bore a 4.2L out to fit 5L pistons.

Edited by TerrA LX, 25 August 2015 - 01:29 PM.

[yel327]

That's what i said?

Faulse, you can not bore a 4.2L out to fit 5L pistons.

 

Read the question again!
 

[yel327]

ill say fact. apart from the internal  differences, sumps interchange and water pumps and most other externals do also.

 

Correct. Aside from possibly the first handful (if any) of VB Commodore 4.2L or 5.0L engines the blocks for VB, VC and VH are all the same block design regardless of whether they are painted red or blue (ignoring 4.2 v 5.0L difference and gearbox pattern as already stated).
 

[TerrA LX]

Here's one for you all, F or F:

 

All Commodore 4.2/5.0L prior to VK are the same block design (TH v 4spd blocks aside and ignoring the obvious differences between the 4.2L and 5.0L blocks).

Thought the question was pretty clear to me.

No 4.2 litre block can be bored out to fit 5.0 litre piston.

 

Obvious differences would be the 4.2 or 5.0 on the side of the block.

Correct. Aside from possibly the first handful (if any) of VB Commodore 4.2L or 5.0L engines the blocks for VB, VC and VH are all the same block design regardless of whether they are painted red or blue (ignoring 4.2 v 5.0L difference and gearbox pattern as already stated).
 

 

So the two inner valley head bolts off a blue motor will bolt a set of heads onto a red block without cracking the valley?

[yel327]

Thought the question was pretty clear to me.

No 4.2 litre block can be bored out to fit 5.0 litre piston.

 

Obvious differences would be the 4.2 or 5.0 on the side of the block.

 

So the two inner valley head bolts off a blue motor will bolt a set of heads onto a red block without cracking the valley?

 

That was the whole point of stating "ignoring the obvious differences between the 4.2L and 5.0L blocks" and hence why I told you to read the question again. That rules out the bore sizes and 253 and 308 on the side.

 

 

As to the question YES. You've nailed the whole point of the fact or fiction question. V8 blocks changed to the long head bolt boss essentially at the start of Commodore engine numbers (before VB Commodore engine 50 was reached) and well before the HQ engine number series expired. There is no difference between a VB Commodore V8 block and a VC one other than the paint colour.