Thread: Ripping the motor out

Keith

This sounds like it's going to be a major project!

Gary

Sounds like a lot of fun Keith. may as well change out the timing chain whilst its all apart, water pump, hoses etc. If you are doing the heads may need to consider new cam, lifters, valve grind..list goes on subject to your will and wallet. If it was me, and my budget I would only worry about the must haves.

Sleeve the block. 5.0L crank and con rods (plus HC pistons to suit). New oil pump gears. Ported heads. Deck the block. Face the heads. Reseat the valves. New valve seals.

The list goes on. In for a cent in for many thousands of dollars (potentially).

Haha thanks guys! The wallet isn't that big though! I was leaning more towards just tidying up ends that are easier to tackle while the motor is out. Definitely not due for a rebuild, it doesn't use oil and runs as smooth as silk!

I like the idea of a 5.0L and new sleeves, etc, perhaps not this time though! I think I'll stroke an LS1 and throw that in if my motor was tired though.

Timing chain is a good one, what kind of lifespan do they generally have?

Cam and lifters are silky smooth, I might just eyeball them for now, if the cam looks suss I'll throw a new one in.

I'm only doing head gaskets as I can see one of my heads needs a few more Nm on a few head bolts, so rather than tension something that could become an issue, I'll kill two birds and do the gasket and replace the bolts at the same time.

I'd go the Torque Converter too while the engine is out and do the flexplate too.

Hey Keithy, maybe some cheap insurance could be a new flexplate!
**** of a job to do in situ!

I think you are right - it's one of those things that should be done. If it were a manual it's only be sensible to replace the clutch and pressure plate with it all apart.

Does anyone know if there's a 'low' stall converter for Bosch 4.6's? I'm keen to use more of the bottom end this motor has to offer.

I shouldn't need to send the heads off for inspection/facing if I'm just doing gaskets hey?

Last time I did a head gasket change was on my old worked 179 Holden motor, a lot easier and very simple compared to the ol' P38!