315 replies to this topic

[S pack]

Dave
Willow has this 1973 LJ V8's in his Head

^^^^^ that and vacant space?

[xu2308]

.

Edited by xu2308, 16 February 2018 - 07:32 PM.

[Shtstr]

i will let you know that 60 sets of heads and 60 engine blocks (308) where made for the 72 lj toranas. They are easy to pick as the are the only ones with an x on the end of the head and the blocks have a x on the inside.

Edited by lcxu105, 10 August 2012 - 03:56 PM.

[A9X]

don't believe you

[Shtstr]

they where later put into the l34's. according to Tony torana RIP from Brisbane who was right into the a9x's

[sagman]

The cylinder case assembly for the LJ V8 was an existing production unit and had new part no. bearings and studs and windage tray, it had a new piston and rod assembly and used an existing crankshaft assembly. The oil pan held 7 pints of oil.

The heads had a new part no. and had new inlet valves and new springs and dampers. There were no other major changes to a standard 308 but in a nutshell the parts could well have formed the basis for the L34 engines.

As far as 60 engine and block sets , well the requirement of 200 cars would have meant 200 engines for the initial homologation of the V8 LJ , as this was a major change to the vehicle that was already homologated.

From that point on any other 'go fast bits ' could have been homolgated as they were previously ( and as we know into the future) , only a very small number of cars would have been required to have all the homologated parts fitted to satisfy Cams ( thanks Dave 'S Pack' )

Laz

[unclefestal34s]

they where later put into the l34's. according to Tony torana RIP from Brisbane who was right into the a9x's

well with all respect to the late Tony M..this X bit is a big crock shit..

L34s were the first of the 308s to have extra webbing at back of the block in 74

and it was one there strength selling points as they were trimatic pattern

from then on when the HJ holdens were fitted with turbo 400s

all the 308s had the extra webbing at the back of the block

this bit about 60 special blocks in 73 is garbage

let alone this magical X THAT APPEARED on the blocks

and yes i have seen a X on a 308 block but it nothing to do

with a L34 engine let alone this cast X on the cylinder head

i've personally owned over a dozen GENUINE L34s in a

28 year period and been around some off the engine builders from that time

i've had hand in purchasing perhaps another dozen...i've seen

my fair share of dismantled L34 engines to know a few facts..

in the last 10 years or so with these cars rising in value a lot

claims with distorted facts that be can't proved or disproved have emerged

more so to sell things and make a fast buck....

[sagman]

Does any one have the part nos. for the heads and inlet valves for the L34 as well as the piston and rod nos.

Laz

[A9X]

don't believe you

rest my case

[xu2308]

.

Edited by xu2308, 16 February 2018 - 07:32 PM.

[sagman]

Reason for asking is that the heads for the V8 LJ have an 'N' alongside of the part no for the head on the parts listing which denotes a new part number.

Head 2825893 inlet valve 28258913 spring/damper asm. 3927142 are all listed as new part nos. for the 308 which would suggest they had not previously been used . other components for the engine have a 'C ' alongside which is for carry over parts while all new components have an 'N'

So again do these numbers appear on any other later than mid '72 308 engines as they are clearly listed as available only on 82911 bodies and given the cars were to be the basis for a performance application would suggest these components are in some way performance enhancing.

Laz

[S pack]

Hi Laz

I don't know about any of the other parts you mentioned however the valve spring/damper assy Pt No. 3927142 is listed as part of the L34 'High output package'.

Cheers
Dave.

[yel327]

There a story's that the early 308H Engines had forged steel cranks and thicker blocks ??????.
As the 308H Block is the first 308 Engine Block, you would think the V8 LJ Block would be the 308H Block, but the Lone o Ranger
V8 Protoype had a QT 308, so seems they were using the QT Block, but in essence they are all 308 Blocks anyway.

The very early Brougham 308 engines have a slightly different crank, they have HP on them too like the blocks. These are probably ones cast back when the engines were first in development, afaik they were not forged and none that I have seen were forged but some sound different, probably a different material cast prior to the new foundry opening in 1967 (guess only). LJ V8's would simply have been HQ blocks just like the early LJ XU-1's were. 308H blocks are no different to HQ blocks anyway, the only difference is the early HT Brougham engines and a few in other cars once the 308 was made available outside Brougham have HP on them rather than 308.
From what I can understand the engines you find with X on the side, these are simply pilot versions of the new HJ block style. The early ones appear around 3/73 or thereabouts. You also see pollution red heads with an X on them, these were early version of the new HX pollution heads used in some lte HJ's. The X is there so it is obvious what they are from the outside.

[xu2308]

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Edited by xu2308, 16 February 2018 - 07:31 PM.

[S pack]

XU2308
Tell me you haven't seen or talked about these markings before
 X1.JPG   62.08K   6 downloads
X Casted Heads 73 to 76
 X2.jpg   51.56K   3 downloads
1 X cast Rods 2 A9L Rods 3 Stock Rods
 x3.jpg   84.43K   5 downloads
X cast Blocks From 73 to 76
 B1.jpg   8.25K   3 downloads
B cast Heads from commadors



The X Heads, Blocks and Rods started in the LH SLR 5000

So they have an X cast into them! What does it have to do with Dealer built LJ V8 Torana's?

[unclefestal34s]

a stock hq 308 manifold has a X next to the part number...wow that must special

[unclefestal34s]

does it have a 74 L34 part number and the X if it does thats to sute them engines

hi richo

i have a stock mid 72 statesman 308 engine mid 1972 build untouched engine with a million miles on 11qt prefix,..the manifold has a X on it..

i'll tell a little secret but you got promise not to tell anyone..THE FACTORY L34 MANIFOLD doesn't have a part number on it..

[xu2308]

.

Edited by xu2308, 16 February 2018 - 07:31 PM.