24 replies to this topic

[yel327]

Agree with the above ^^. Except I wouldn't do it to the engine in the SL/R now if it's the original HL block for the car. Put it aside and find another block, doesn't matter what just don't use the original if you can help it. You should be able to pick up a red QL/QM etc block for less than $100.

[FastEHHolden]

Or I have a HL SLR 202 for sale..stripped down....date stamp of block , head and exhaust manifold all very close...can have it for $75...

or Tuff has a runner..think its QL? PM him

[FastEHHolden]

I have blue rods too...$60 a set...$10 ea.

That block is std bore but it has a lip so I would go a rebore one it.

I have a YT head too..$300

Fark...your in Melbourne.


BTW you'll pay about $350 for triples.

[FastEHHolden]

I have it all...crank, head, block the lot.

The head will work if you don't want to get it recoed now....its not stuffed...its so much like a 9 port that it is one.

If you have to send a head you may as well fill a pallet.

[FastEHHolden]

I have a lightened flywheel but I dont want to sell that one....suggest a blue motor flywheel (got one) or get one lightened and balanced when you get your other machining done.

[orangeLJ]

I run a YT explosion proof steel flywheel, great investment!
they are about $400 from YT.

Buy a decent harmonic balancer and make sure you get the whole lot balanced (clutch, flywheel, crank rods, pistons etc etc) its not too expensive (cost me a couple hundred) and it gives you piece of mind.

I run ACL flat tops (larry perkins series) on Black rods (although I have some H beam forged rods in the shed )

Head wise, you can get away with a stage 3 holden head with a mild port clean up and a set of fresh decent sized valves.

My old 6 was around the 100kw mark (94kw) running really rich (too big needles in the carbies)

It was running a "stage 2 cam" (was a custom grind based off a crow cams stage 2 profile) holden stg3 head with mild port work, about 8.5:1 compression (bugger all really) lightened flywheel and triple SUs on long runner armours manifolds.

It was a tidy package, didnt like to rev much (about 4500 was the cutoff) but it was more then enough for flogging around on my red Ps and for a bit of my greens.

Now running 9.8:1 compression, ACL flattops on black rods, custom cam a smidge bigger then 35/75 (hydraulic), YT roller rockers, bit more portwork (still nothing major) Still running the triple SUs with same (BV needles I think) needles, fully balanced rotating assembly, YT flywheel, Electronic ignition, MSD 5 etc etc.

it goes ALOT better then before.

In 6-12 months time Im swapping over to 40mm webers which should see a bit more improvement again.

Id say for starters, build up something mild, the major costs come in machine work, throw a mid range camshaft in it with a whack of compression and some triples and let him get used to that for a while (its more then enough to get yourself into trouble)

Then throw a couple grand at it down the track and go from there!

my next engine (a while off now, Ive got a mortgage!) will more then likely be a blown and injected, so another step up!

I think I babbled alot, but anyway, have fun!