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My little 304 just pulled 440hp and 480lbft at the wheels with 10psi of boost. Stock bottom end with a turbo cam. The torque curve just shoots up instantly on boost.

Wingless boys will buy the engine got about 5 VR ones myself

That Iron Lion loves to roar! 🦁 Sound much better than LS motors and probably go as hard (without having to make as much power) too.

What’s the specs on the V8 you have slipped into the engine bay?

Looking good!

What did the motor build set you back mate?

I reckon that bay looks smick for a car that age. You were wise not to paint it

looks like the poem chamber inlets could be enlarged for more air flow and power

That's a solid number for a 304 👍

Add some volume /diameter to that snirkel and port/ blend the ports into t/b. Ideally an inch larger than t/b size. Bellmouth entry of snorkel, then bug airbox with filter. And you should get closer back to 426hp. 👍

Larry Perkins KNEW how to build a Holden V8 Bathurst 1993, won qualifying, Won the Race, AWESOME everyone else was using Chev, NOT LP!! 👍👍👍👍

Nice to see a'5 litre vid for a change!. Nice job. I have a 530hp 5.0 rover v8. Evolved over time

Extremely useful...

very nice. i bought an S Pac wagon new in 91. Believe me the V6 was a revelation compared to what you got from the General before the VN.

I cant find this part.

Nice video, clever idea using the tyre to test

how did this only make 350 on 10+ psi ?

Good to see people still playing with Holden V8's. Sorry to see the blow up. I think you were running too much timing. My stock bottom end 304 with just a cam made 380 rwhp though a 4000rpm converter on 10psi boost and I was running 20 degrees timing. The motor did powercruise and other events and when I pulled it down it was perfect apart from worn cam bearings. It's a shame to here you're moving on from it

Mean

That's mint ! Nice buy and great base for what's to come.. I'm happy to hear you didn't mention an LS conversion :)

dyno video of it making around 350whp showed a AFR of 17.0! thats so lean it cant not cause damage especially with boost.. ring gap is a big thing for boost, heat and the extra pressure too!

The torque 😮

Ooshhh

Hopefully just a head gasket I feel for you especially after all that good work. I would recommend a intercooler after short period of boost your intake charge temperature would be through the roof especially on those front pistons.

Awesome stuff mate she's tidy as, it's the exact build that I want, clean white VR/VS with a snail bolted to the almighty Aussie iron lion..

Hi, how have those thin mild steel manifolds held up? I thought they might crack being thin.

That's typical of insufficient ring end gap for that application 😢

Bugger! Definitely a lucky break though haha. Curious what rings you used? Acl supplied in the kit ?? Im guessing they wouldn't provide recommendations for gap considering they arent intended for that application.. but the ls guys teach us a bit here running near ot at 1000hp on factory pistons.. most pro advice ive seen on turbos is 7 thou per bore inch and i know Richard holdener uses 28'ish.. whether that would have made the difference who knows. Cool project mate i hope someone keen can take it from you and give it a new life

Sorry to hear that mate unfortunate Any thoughts on what could have caused it

Nice set up What valve springs did you use

Most likely broken ring land between the two piston rings.

Were those rings gapped for boost?

Compressed air via spark plug hole will seat the valves and make it easier to drop your collets in.. Like the $35 LS compressor tool 👍🏼

Hi thanks for the video,I'm looking at putting the same cam in my Vn 304 and have not done it before so this was a good help to see how to change the springs....can I just ask to put new valve stem seals in can you do it like this while you have the springs out do they just slide out and slide down the new one? or is there more to it? Cheers

Spewing mate unlucky

Subbed mate , just started doing this to my VQ

I have a VT roller in my HZ Premier, wouldn't mind beefing it up a bit, ill check out your other videos

Was it a head gasket?

Nice mate 👍🏻

Good video mate, fingers crossed it’s just a head head gasket.

These old 5 litter 304 don't have enough clamping force on heads they use to blow on small shots of nitrous years ago even when not old best of luck hopefully just Head gasket

Very solid build mate, cannot really fault the combo on paper.. don't know much about the oring gaskets but aren't you also meant to cut both block and head mating surfaces? Ihave read people running standard felpros in ls1s etc over 15psi for years..

As soon as you pull the inlet off you can see if the headgasket is blown out into the valley... ask me how I know haha Sucks to happen but that's modified car life 😕

Bugger! hopefully it’s not hurt maybe just pushed the gasket? but if not obviously the gaskets maybe do a wet test on the pistons?

that turbo is nuts

I thought you were getting fat

looking good mate. congrats on the baby

Love the sound of the 5lt even more so with boost, what snails it running?

Does that thing have a flux capacitor?

Great result! That'll be a bunch of fun to drive at that power level mate. Enjoy it!