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Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Mon Nov 28, 2011 4:37 pm
by shoedoos
This sold for $NZ15k back in 2008 down in New Zealand - pretty sure some of you will be interested to see inside a Weslake headed SB Chevy....


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Re: Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Wed Nov 30, 2011 10:24 pm
by promachine
I have one of these Westlake chevys in my shop now and from what I have heard there was only 5-10 sets of these heads made.

Re: Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Thu Dec 01, 2011 12:16 am
by jsgarage
Really interesting- thanks for posting. Looks like the motor was coupled to a '70s ZF transaxle- probably from a Pantera- and had the world's longest pushrods!

Re: Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Fri Dec 02, 2011 6:28 pm
by Kazoom
Thanks for posting these pics shoedoos, how I understand it is the dominion/arao 32v heads were modeled after the weslakes just with there own int/exh changes. I heard there were at least 2 doz sets made?.

Re: Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Sun Dec 04, 2011 12:07 am
by Ratu
Fantasic pictures. Any more?

By the way, there was a Gurney V-8 engine which had three valves per cylinder. I'd be very keen to know if anyone has any pictures of that one!

Ratu

Re: Just for interest's sake - Weslake SB Chevy 4-valve heads

Posted: Sun Dec 04, 2011 12:18 am
by shoedoos
that's it.....these were sent to me by the guy who was selling the engine.....

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 6:01 pm
by old_chopper
Do these heads ever come up for sale? I'd love to have a set.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 7:00 pm
by PackardV8
Looking at those, I'm getting an Ardun vibe. Lot's of engineering, casting and complication to work with the common short block of the day. Anyone want to wager today's better LS heads will make more horsepower per cubic inch?

jack vines

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 7:15 pm
by Warpspeed
Back in the day... I remember people used to drool over the fantastically expensive Cosworth DOHC four valve heads.
They were about the ultimate development in their time, when most of us were driving pushrod engines with siamesed ports.

Today even Hyundai make DOHC four valve heads probably just as good, and fit it to their cheapest commuter shoe box transport.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 7:20 pm
by ptuomov
Warpspeed wrote:Back in the day... I remember people used to drool over the fantastically expensive Cosworth DOHC four valve heads.
They were about the ultimate development in their time, when most of us were driving pushrod engines with siamesed ports. Today even Hyundai make DOHC four valve heads probably just as good, and fit it to their cheapest commuter shoe box transport.
And you can buy a low miles, perfectly running, 32-valve quad-cam 5.0L Porsche V8 complete with harnesses and auxiliaries off Ebay for $2500.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 8:51 pm
by PackardV8
And you can buy a low miles, perfectly running, 32-valve quad-cam 5.0L Porsche V8 complete with harnesses and auxiliaries off Ebay for $2500.
As much as I loved driving the 928, if someone tried to give me one today, I'd chase him off with a shotgun. The local Porsche dealer is relatively new and if he didn't sell it, he doesn't want to see it in his shop. There's literally no one in 300 miles who stocks any parts; much less anyone who's ever seen the inside of a 928 V8 or knows how to change the water pump. I've been inside one and hope never to go there again.

jack vines

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 9:04 pm
by JCR
The phrase of "never own a German car out of warranty" was originated from the 928.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 9:40 pm
by Warpspeed
The 928 engine is a great engine.... until you need to buy spares or work on one.

But how about some of the Japanese DOHC four valve V8s ?
Now used in many SUVs there are enough of them around and they are not expensive, and many go faster bits are available from Japan.
At least in oZ, it would make much more financial sense than a 928 Porka or BMW V8, great engines though they both are.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 10:28 pm
by ptuomov
Hey - it's nor as bad as you say, if you do your own work! A gasket set is only about as much as the down payment on a new ford focus.

Re: Just for interest's sake - Weslake SB Chevy 4-valve head

Posted: Thu Aug 29, 2013 10:47 pm
by wil8115
PackardV8 wrote:Looking at those, I'm getting an Ardun vibe. Lot's of engineering, casting and complication to work with the common short block of the day. Anyone want to wager today's better LS heads will make more horsepower per cubic inch?

jack vines

I wouldn't doubt it hp/litre vs hp/litre.. but for cool factor LS can't compete. 8)

Anyone have the flow numbers? would be curious how much more they got then heads of the same era.
I have a set of older Brodix -8's(may '88 castings) got them to 282@.600 and were still climbing at .800(301)
with just a 2.02.