HH5 block??

[pie]

any one know what the HH5 means ?

was sorting my lockup out and i got a LET HH5 block here with crank

[Nova_Tek]

I too was wondering this. If I remember right I think there is HH3, HH5 & HH7. I could've sworn that I saw someone selling a HH7 block recently saying that it was 'rare' and 'very strong'.

Not 100% sure though.

[paul080803]

That is the block casting revision. It goes HH1 through to HH9 then HG1 through to HG4. HH1 is earliest and HG4 latest. The later the stronger, allegedly, as it has the most casting revisions and 'should' be the best.

[pie]

aww right cheers paul

[paul080803]

aww right cheers paul

No problem pal

[Novasport]

That is the block casting revision. It goes HH1 through to HH9 then HG1 through to HG4. HH1 is earliest and HG4 latest. The later the stronger, allegedly, as it has the most casting revisions and 'should' be the best.

Don't you mean, as it has the most shaved off it that the manufacturer can get away with without the block disintegrating and the cheapest metal has been used then it should be more cost effective! Profit my man, that is what the car industry is about lol

[Nova_Tek]

Only ever seen 3, 5 & 7

[paul080803]

Don't you mean, as it has the most shaved off it that the manufacturer can get away with without the block disintegrating and the cheapest metal has been used then it should be more cost effective! Profit my man, that is what the car industry is about lol

That is why I said allegedly lol!

It is always a balance between manufacturing costs but also reliability and in turn warranty cost to vauxhall!

Personally a middle casting would be best, so it has any bugs ironed out but before they make it to the tightest tolerance aloud!!!

[Mieran]

I've been told HH7 is the strongest due to extra webbing to reduce noise.

HH7 is late XE coilpack iirc.

[Andy]

I would have said realistically its just numbers and hear say

[bazil]

I was told the same thing about bottles of buckfast, apparently the lower the number the stronger it was,

Never did notice ant difference,

[bazil]

Only ever seen 3, 5 & 7

My 20XE is a HH4
Proper early dizzy engine with no lamda, scalloped crank, 86P pistons and beige injectors

[Nova_Tek]

I forget what mine is. Do need to check.

[bazil]

I'll need to look at my LET block now as its got me curious lol

[Nova_Tek]

I need to look at my pistons too (need to find that piston thread too now) lol

[pie]

86p iirc bazil for forged ones

[Nova_Tek]

Mines HH5 too

http://img824.imageshack.us/img824/2581/1002751y.jpg

Is that a date stamp ------------------------- ^^^ (05/05/92) ... If so it's been exactly 20 years :)

[Nova_Tek]

Pistons are 86 P (as they should be) :)

[bazil]

My LET block is a HH7 lol

Does that mean mines better or worse

[Nova_Tek]

No body knows muhahahahaaaa!

[pie]

duno mr bazil lol hence started this thread f lol

not sure if the HH7 is better or the HH1 lol

[bazil]

all i know is i have a HH4 XE and a HH7 LET ??