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Pro Topline was originally cast in New Zealand. I don't know if Comp is still using that foundry or if they've moved it. I know they had some valvetrain geometry issues on the small block stuff, the big block stuff has always been fine AFAIK.
Cast in China machined in USA from what I can gather. My machine shop guy has had issues with them out of the box. I would stick with Brodix, AFR, Dart. I know the temptation to save the coin but.......................
Cast in China machined in USA from what I can gather. My machine shop guy has had issues with them out of the box. I would stick with Brodix, AFR, Dart. I know the temptation to save the coin but.......................
Well now that L88 reminded me it was New Zealand I remember reading
Comp just took over the plant bought them out.
Comp is even still using the pro action name same as used before for there iron heads.
I like iron heads even though there heavier they make a 14 degree
raised runner head as small as a 235 runner on up to 285, When pro
top line was still in business the head was reasonable in price the
part number for the head on RHS web site does not come up at summit they must not be stocking it. Brodix has some reasonable priced 12 degree raised runner heads but the runner sizes start out bigger then 235.
Last edited by Little Mouse; Aug 13, 2009 at 03:13 PM.
Pro Topline was originally cast in New Zealand. I don't know if Comp is still using that foundry or if they've moved it. I know they had some valvetrain geometry issues on the small block stuff, the big block stuff has always been fine AFAIK.
x2
Bought a set 5 years ago, great head. Can't speak for the newer stuff though
Comp cams has always kept there old racing head service name
from the 70s. When I lived in little rock racing head service was in memphis had a reputation as one of the best porting services in the country guy I knew had a 292 E modified production car held the record for a short while his heads were done at racing head service.
Now that L88Plus jogged my memory I remember reading about pro
top line being in New Zealand they went out of business for around a yrs time comp cams bought them.
It would make sense if they had a good foundry and equipment to just by an exsisting business use it.
Far as I know people in New Zealand speak good old british colony
english I would have no problem buying from them as long as the produt
is good same with austraila lot of people may not know it but some of the best heads made on the planet are coming from Australia.
Now I hate China's guts consider them to be nothing but our enemy
will drive all over everywhere tryng to find something I need as often as I can to avoid buying anything from them when I can.
I will check into it see if they have there own foundry what the deal is.
Last edited by Little Mouse; Aug 13, 2009 at 07:40 PM.
They were made in New Zealand in 2006 according to this article. http://www.fordmuscle.com/archives/2...eads/index.php
Don't know about now.
Story I remember reading but can't find now is the company is located in New Zealand. The old Pro Topline heads were originally cast there. Then moved foundry operations to China. Machine work and assembly done in New Zealand. Now China-----------> New Zealand---------->USA
Company: Pro Topline Holdings Ltd (which changed its name from Pro Cylinder Holdings Ltd in 2001)
Directors: Craig Pulman, Chester Staron (US) & Anthony Trubuhovich
Liquidation: 20 December
Liquidators: Raymond Burgess
Creditors’ claims: Tuesday 1 February
Directors’ other main interests: Pro Topline Ltd (trading as Glucina Metals) was wound up in March on China Minmetals NZ Ltd’s application. Mr Pulman is also a director of Abrasive Systems Ltd, Thomas Marketing Ltd (in liquidation), Chicago Holdings Ltd, Proaction Manufacturing Ltd and Pro Topline Holdings Ltd. Mr Staron is also a director of Pro Topline Holdings. Mr Trubuhovich is also a director of Aluminium Ingot Co Ltd, Alloy Holdings Ltd, Alloy Properties Ltd, AT Coaching Ltd & Regent Trading Co Ltd (in liquidation).
220, 236, runner 23 degree heads,18,15,13 degree heads, aluminum cylinder blocks with 8.5 to 9.5 deck heights, intake manifolds, just click on products.
BES racing engines used one of there 23 degree heads modified it some to win the 2007 engine master challenge with a 400 SB.
Jon Kaase has won the engine masters several times with these cleveland ford heads from australia.
I have a pair of new castings from before the sale. They're as nice as any out-of-the-box castings I've ever seen. I compared 'em on a bench to Dart Pro 1's and some Brodix heads about the same size. When it came to guide, helicoil. etc. placement in the bosses, the Pro Toplines were spot-on, couldn't say the same for the other two. These are going to get lightly ported and put on a 540 roller motor some day.
Lets be fair about those heads he is using they are mega ported with big block valves.
My point is there are good heads coming out of australia.
Yep I said there modified but BES could have chose AFR, dart, brodix,trick flow but they didn't the australians are making good heads. BES racing engines is in Indiana. Jon Kaase is in Georgia his engines won 12 IHRA pro stock championships in a row 13 total. three engine masters wins.
BES also modified the manifold a lot, these things get done when pro builders square off in competition with each other have the eperience and equipment to test the modifications.
Last edited by Little Mouse; Aug 14, 2009 at 05:06 PM.
This is an old thread but I have some new info. My machinist has been using the RHS heads on some recent BB builds. He has had good results with them. He ported some big block heads and they flowed AFR type numbers with similar port sizes. Don't know where they are made.
I don't know that I trust anybody on a Mopar forum to know where my heads were cast. When ProComps first came out, the claim was that they were cast and machined in Australia. It later came out that they were cast in China and had a paper trail to Australia.
If Comp did move the Pro Topline foundry to China, there's no reason they can't compete with the cheaper Harbor Freight (ProComp) heads on price. How about it, Comp???
There are a couple of builders over at Team Chevelle using RHS/ProTopline heads with great results.
I've been running the RHS Aluminum small block 235cc heads for a year now out of the box. I flowed them my self on the flow bench before I assembled them and they flowed very close to the advertised spec. Everything mated up good on assembly, too. So far, no problems. Motor makes 600hp on pump gas. I'm happy with mine.
From: At my Bar drinking and wrenching in Lafayette Colorado
I've used RHS iron and aluminum heads on SBC builds, always running 500hp and over. The machine work, which lacked consistency when it was done in New Zealand, has been moved to the US, and is now very nice. The heads flow as advertised, and are good quality units.