Old kiwi Pro Topline 200cc iron SBC heads
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Old kiwi Pro Topline 200cc iron SBC heads
Just doing a set of these for a 388 cube (3.8x4.03") SBC street/strip engine, I'd heard they were good things but haven't seen any of the 200cc ones in the past.
In stock form they had 2.02/1.6" valves & were only ok.
I stuck 2.08" intakes in & gave them a decent rub - they've ended up at 216cc with a 2.1" MCSA
What was suprising was just how easy & how much they picked up, damn they are a good for a basic iron stock port/valve location head:
Flow
lift - stock 2.02" - ported 2.08"
.1 - 61 - 69.5
.2 - 116 - 135.5
.3 - 159 - 187
.4 - 201 - 233
.5 - 235 - 269
.55 - 245 - 284
.6 - 252 - 299
.65 - 255 - 309
.7 - 257 - 320
.75 - 260 - 324
Exhaust:
.1 - 57 - 59
.2 - 99 - 108
.3 - 132 - 137
.4 - 159 - 166
.5 - 175 - 186
.55 - 180 - 192
.6 - 185 - 197
.65 - 189 - 201
.7 - 192 - 204
.75 - 193 - 207
I'll put some pics up in a few days when I've finished porting.
In stock form they had 2.02/1.6" valves & were only ok.
I stuck 2.08" intakes in & gave them a decent rub - they've ended up at 216cc with a 2.1" MCSA
What was suprising was just how easy & how much they picked up, damn they are a good for a basic iron stock port/valve location head:
Flow
lift - stock 2.02" - ported 2.08"
.1 - 61 - 69.5
.2 - 116 - 135.5
.3 - 159 - 187
.4 - 201 - 233
.5 - 235 - 269
.55 - 245 - 284
.6 - 252 - 299
.65 - 255 - 309
.7 - 257 - 320
.75 - 260 - 324
Exhaust:
.1 - 57 - 59
.2 - 99 - 108
.3 - 132 - 137
.4 - 159 - 166
.5 - 175 - 186
.55 - 180 - 192
.6 - 185 - 197
.65 - 189 - 201
.7 - 192 - 204
.75 - 193 - 207
I'll put some pics up in a few days when I've finished porting.
Re: Old kiwi Pro Topline 200cc iron SBC heads
Mr Pullman had some smart cookies working for him...pity he couldn't keep the company on the straight and narrow...
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Re: Old kiwi Pro Topline 200cc iron SBC heads
Well looking at things in terms of running .650" lift you picked up 21% more flow for only a port volume gain of 8%.
I hope the motor can make 7500 as I think that will where things are happening best for that cid!
I hope the motor can make 7500 as I think that will where things are happening best for that cid!
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Re: Old kiwi Pro Topline 200cc iron SBC heads
Are these heads available today? Did they become the RHS heads and now maybe EQ?
Re: Old kiwi Pro Topline 200cc iron SBC heads
I have a pair New in the box....open to offers on them.Old School wrote:Are these heads available today? Did they become the RHS heads and now maybe EQ?
Re: Old kiwi Pro Topline 200cc iron SBC heads
Yes, Comp bought ProTopline heads and became RHS and then I believe the PT guys started EQ, I have all three in my shop and there is little if any difference in them.Old School wrote:Are these heads available today? Did they become the RHS heads and now maybe EQ?
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THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
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Re: Old kiwi Pro Topline 200cc iron SBC heads
RHS took over the company and manufacturing but that program was short lived about 5 years then they were no longer produced.Old School wrote:Are these heads available today? Did they become the RHS heads and now maybe EQ?
It really sucked as they were the very best iron head ever produced. In out of the box form they worked very well and with little man they were steller.
EQ got heads cast in the same place but dropped their lines almost the same time RHS tanked their iron HP heads.
Now aluminum is mostly taken over. Dart has some good iron HP heads but they need more work the the aussie heads ever did but you must work with whats available.
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Re: Old kiwi Pro Topline 200cc iron SBC heads
Bottom end will be good, but she'll be a flat tappet - will see a lot of street miles & maintenance of a roller won't suit the owner, hyd roller won't turn the rpm required.Well looking at things in terms of running .650" lift you picked up 21% more flow for only a port volume gain of 8%.
I hope the motor can make 7500 as I think that will where things are happening best for that cid!
Using 1.6/1.5 rocker combo & a cam something like 264/270 on 107, lift will be a tad over .600"
The other limit will be intake manifold - have to use a vic jnr for hood clearance, but I do have free reign to port it as much as required (yay, looking forward to that).
Comp will be 11:1 or a little over, carb will be a QF850 & it'll run on pump swill.
Aiming for 550hp @ under 7000rpm. That'll be enough to run in the 10's - which is as quick as it can go at the local track without a cage.
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Re: Old kiwi Pro Topline 200cc iron SBC heads
Looks like this is gonna get a solid roller rather than flat tappet - Crane street roller lobes, 264/270 on 106, .620/.580" lift after lash with the 1.6/1.5 rockers.
Re: Old kiwi Pro Topline 200cc iron SBC heads
Why can't a sb run 7000 with a HR, they're doing it with bb?
Jim
Re: Old kiwi Pro Topline 200cc iron SBC heads
I did it 20 + years ago. Before I knew it wasn't possible.77cruiser wrote:Why can't a sb run 7000 with a HR, they're doing it with bb?
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Re: Old kiwi Pro Topline 200cc iron SBC heads
I want it to carry past 7000 & in the past I've seen plenty of hyd rollers start to taper off above 6500.Why can't a sb run 7000 with a HR, they're doing it with bb?
The cam is easy on the valve train & does not require a bunch of seat pressure, life span should exceed a flat tappet with .390+ lobes & 1.6 ratio rockers - which was the other option to feed it.
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Re: Old kiwi Pro Topline 200cc iron SBC heads
All done:
DSC00762 by tony knight, on Flickr
DSC00751 by tony knight, on Flickr
DSC00753 by tony knight, on Flickr
DSC00754 by tony knight, on Flickr
DSC00755 by tony knight, on Flickr
DSC00757 by tony knight, on Flickr
DSC00760 by tony knight, on Flickr
DSC00762 by tony knight, on Flickr
DSC00751 by tony knight, on Flickr
DSC00753 by tony knight, on Flickr
DSC00754 by tony knight, on Flickr
DSC00755 by tony knight, on Flickr
DSC00757 by tony knight, on Flickr
DSC00760 by tony knight, on Flickr
Re: Old kiwi Pro Topline 200cc iron SBC heads
Nice job Tony,
man that short turn is high! I hate that in those heads, Your opinion on that Tony? anyone else?
man that short turn is high! I hate that in those heads, Your opinion on that Tony? anyone else?