33 replies to this topic

[rodomo]

I am looking for a period 202 for my LJ (don't get excited)

I have looked at yel327's site: http://www.monaroparts.com/Engines.htm (which I recommend you add to your favorites)

But is there any way of telling by the numerals in the engine number whether it is pre-pollution?

I know the records around this era are a bit vauge but most engines that come up are QL prefix which extends fron HQ (pre-pollution) to late HX & LX (pollution) according to yel's site?

All help appreciated

[rodomo]

I'm not after a specific 202, rather any 202 that I don't have to fit pollution gear to.
E.g. I have a UC 202 here but to fit it o a LJ it should have a charcoal canister and an E.G.R valve working.

[makka]

anything JL will work for ya Rob.

if you want to use a HL or QL you will have to check the cast dates to see if its pre poll or not

[rodomo]

Yep, I know about reading the cast dates, I just thought someone might know roughly where the numerals in the engine number line up with the cast date?

Asking some on e-bay to post the cast date is too hard in most cases where they can easily read the engine number.

[yel327]

HQ engines finished approx 550000. So any QL pre that. Even a HJ which finished around 730000 would do as they are only ADR27A.

[rodomo]

That's the answer I was look1ng for! Thanks!

Next question?
With the other prefixes mentioned, e.g. QL, QM etc., do all the numbers run in sequence?

What I mean is, could for example, the sequence be:
QL 000001
QM 000002
QD 000003 as they are all 202's?

Or

Could there be:
QL 000001
QM 000001
QD 000001

[yel327]

Your first list is sort of correct (note QD is a 173). The first HQ series engine was QD1001 (all series started at 1001 except for Chevs engines). The list when it started included All HQ, LC, HG 6cyl. Only HQ 350 Chev engines were separate. The export HG engines which were built up until 1973 were stockpiled early engines hence were 308H prefix. Here is a cut and paste of the HQ engine number series from my engine number series webpage i'm currently working on:


HQ-HZ, LC � LJ (LC from HQ release with ALC prefix chassis), HG commercials with AHG chassis number prefix, LX-UC 6cyl auto with ADR27A and Bedford (CF, E, M and S series).

Except for the 350ci engines the HQ engine number sequence started at QD1001. Contained within the same sequence are engines with Qx, Cx, Gx, Fx, Bx or XQx prefixes dependant upon whether the engines are in HQ-HZ, LC-LJ, HG, CF Bedford, E/M/S series Bedford or LX-UC vehicles (Nasco/GMP&A replacement engines also used the same format but looked like Nx1001 plus the Nasco engines used their own sequence outside the HQ engine number sequence � see later section).
Engines in LJ that weren�t available in LC had a Jx prefix eg JL, JP etc.
When the number sequence reached 999999 around 8/78 (mid HZ) the sequence reset to 1001 and the Q was replaced by a Z for HZ (G, C and J were long gone by this stage) and XZ for 6cyl auto UC. If the vehicle was in a Statesman it also has a 11 prefix (eg 11Qx1002). The x was one of the following:

A � 130 ci (export only);
B � 138 ci high comp (also known as 2250cc);
C � 138 ci low comp (also known as 2250cc);
D � 173 ci high comp (also known as 2850cc);
E � 173 ci low comp (also known as 2850cc);
F � 173 ci 2850S engine;
K � 186 ci XU-1 (re-used for 3300 EFI in VK and VN Group A);
L � 202 ci high comp (also known as 3300cc);
M � 202 ci low comp (also known as 3300cc);
P � 202 ci XU-1 (also known as 3300cc);
R � 253 ci high comp (also known as 4.2L);
S � 253 ci low comp (also known as 4.2L);
T � 308 ci high comp (also known as 5.0L);
V � 308 ci low comp (Bedford only);
Z � 308 L34 (re-used for VK V5H).


HQ 350 Chevrolet engines began with QU (or 11QU for Statesman) and were allocated a plant dependant sequence just like HK-HG but the sequences reset at the start of HQ:

Acacia Ridge Chev V8: QU00001 to QU09999;

Pagewood Chev V8: QU10000 to QU39999 (some anomalies exist);

Dandenong Chev V8: QU40000 to QU73999 (early Dandenong engines had HG prefixes eg 350A) (some anomalies exist);

Elizabeth Chev V8: QU74000 to QU89999;

Mosman Park Chev V8: QU90000 to QU99999 (shouldn�t be any of these as Mosman didn�t build Coupes or Statesmans).

HQ Chevrolet engines also had a North American �suffix� to the Holden engine number which was stamped in a different size.
Examples: QU11000K0311H, 11QU43050K1210H.

Note on Holden engines fitted to Bedfords. Whilst the CF Bedford 173 and 202 engines were certainly red motors it is yet unclear if the 253 and 308 engines fitted to E, M and S series Bedfords were red or blue motors. If they are blue motors the engine numbers should exist in the Commodore series started at VB release.

[rodomo]

Found one, I just hope it's usable.
http://cgi.ebay.com....em=110349624369

[rodomo]

Update:
Stripped this down to a short motor last night and found a few surprises

JP oil pump and timing gears
Cam? Does anyone know what 403 means?
Chopped out and tubed inlet ports
YT valves
Rocker mods? V8 rockers perhaps?
Lightened flywheel

But it's out to .080"

22 A 4 = 22/1/74? Correct?

Attached Files

•  valves.jpg   42.34K   34 downloads
•  ports.jpg   45K   31 downloads
•  cam.jpg   58.09K   32 downloads
•  oil_pump.jpg   98.7K   31 downloads
•  rockers.jpg   143.68K   65 downloads

Edited by rodomo, 12 March 2009 - 08:54 AM.

[makka]

hey Rob, looks like you got a bargain there, whats the head number? looks like someone has either fitted V8 rockers to a pre 202 head or converted a 202 head to adjustable rockers.

[rodomo]

It's either 179 or 186 as it has the big spark plugs fitted.
It's been a while but isn't the nut size 9/16" AF normally for adjusting the rockers?
These are around 11/16"AF

[FastEHHolden]

looks like a bit of dolly yellow paint under one of the headbolts...but those adjusting nuts do look a bit out of place.

[rodomo]

Ha ha! I've never paid anyone to build motors in my life and I'm not starting now.

[VitcLJ]

Rodomo,

Have a 202 out of an LJ in the garage its yours for taking (cept for the sump) if you are interested send me PM.
Engine number is QL561XXX

It was running reasonably well when taken out of the car.

[rodomo]

Woo! Hoo!
PM sent!

[VitcLJ]

Phone # sent via PM

[VitcLJ]

Rob checked casting marks 15H4 clock at six oclock

[rodomo]

Thanks mate! That's pre canister so it will be correct for my LJ.

[piquet]

probably find the number on the end of the cam is the number for a re grind
I have checked the Waggott , wade and Tighe catalogues and it doesnt come up as one of their grinds.
Will check the speco-thomas catalogue and get back
cheers
peter

[rodomo]

probably find the number on the end of the cam is the number for a re grind
I have checked the Waggott , wade and Tighe catalogues and it doesnt come up as one of their grinds.
Will check the speco-thomas catalogue and get back
cheers
peter

I checked wade and crow and crane last night and came up with nothing either

[makka]

has it got solids?