The1's Daily

[vlad01]

my VY L26 based engine has 8134 casting. So that confirms that its the latest casting and NA only, L32 must still use 4781?

it would be interesting to slice each type open and look for flaws and improvements.

[Holden202T]

wont be hard to find Ecotec N/A heads to cut up lol!

[The1]

well mate at holden has said they changed to the metal sump gaskets after VS699660 which looks to be just a running change on the line. Havn't gotten any info on heads.

[The1]

There are 3 different head castings. numbers

2136 early heads, known to crack? No injector boss or pockets.
4781 revised head 98-99? has boss and injector pocket for L67 and L36 and is drilled for the injectors in L67
8134 ?? No injector pocket . Possibly L26 heads.

where's the head number located?

[vlad01]

inside the head, next to one of the rocker bosses

[The1]

ive had a look under one of the rocker cover gaskets only number i can see is E307, i will check the other head when i can, pretty damn hot outside atm and the last few days. I pulled the alternator, powersteering pump, wiring and boost hoses and solenoid off yesterday arvo, will get the gearbox off this arvo hopefully, then top end stuff and then get it onto the stand sometime.

[vlad01]

should be in both heads, the heads are the same left or right.

[immortality]

Get some degreaser and give it a good clean before stripping anything down. Makes life a lot easier later on.

[The1]

did exactly that, anyone used that CLR product before, id seen it for years and didn't think much of it, bunnings had it for $14 so picked one up, all i can say is WOW, spray on hose off and apparently doesn't kill your grass.

I put some oil in cause the sump was dry just see what it was like coming out the bottom, looks like sump is cracked as it came out the front! I couldn't see a crack when i had it on the crane. Pulled the gearbox off looks fine inside, gave it a wipe no goop only usual clutch wear, though fluid was ready for a change. Will be up for sale as i dont need another gearbox.

[Helical]

I might have to pick some of that stuff up, that's pretty impressive for just hose off.