[Mustangsaly]

Are these World Product Sportsman Heads worth $600 ?

straight plug heads

they have comp cams s/s valves 202/160 200cc intake runner 64cc combustion chamber and screw in studs with 10 degree locks dual valve springs. heads are setup for hyd cam with max lift 525

[malc]

Search them out at Summit and compare.

[Mustangsaly]

well I guess I'm asking are they a good performance head ? what aftermarket performance head are the equivalent to ?

[C-10]

Those look rather new. Or rebuilt with new valves. $600 complete is not TOO bad. I'd wave $500 under his nose...

I have an engine with these very heads- except mine are the angle plug versions. Later I installed all bronze guides because of some wear, but other than that, they are still on the engine and doing well.

Performance is just crazy good. They are in my estimation 20 times better than any first generation GM head. For the cash outlay, it often baffles me as to why people still insist on spending as much and sometime MORE on Stock castings, when they can have a really good set of Sportsman II's. The intakes are beautiful right out of the box, bowl area and all. The exhausts I worked on some, but are pretty good out of the box as well. I use the Sportsman II dual plane as well- a killer combo.

I do not have a dyno sheet, so I won't talk numbers but if you bolt these on a 10 to 1 roller short block, you will be pleasantly surprised.

It just occurred to me, they could be the older Sportsmans too. They brought out the 2's sometime later. Either way, you'd like them, I think.

[Blazin72]

I have some Sportsman IIs, they seem to be decent. But then again, I don't have any experiences with other heads to compare them against. They do have fairly big ports (200cc intakes) and it seems that many other heads with smaller ports flow nearly as much or, in some cases, more than the Sportsman IIs. Of course those other heads seem to cost ~$200 more than the Sportmans.

[emperor91108]

The sportsman II heads have nice 200cc runners and plenty of meat for porting. They actually require porting to get them flowing really well. A very nice quality cast iron head. I use to have some double humps that had all the work done to them and these are way better. Much more modern design.

Here are some pic and spec of the combo that I am using them on:
http://web.mac.com/gjnavarro/iWeb/Camaro/engine.html

[tornado-tech]

I ran a set of the Summit-prepared Sportsmans on my old 408cid 1st mud truck. They were 2.05/1.6 and portmatched to a 1205 intake gasket. On the outside, they looked exactly like a stock head and they had a custom 284/288 mechanical roller with .612"/.598" lift on a 112 LSA. They fed the 10.84cr motor at my shift points of 6800rpm. Good heads for the $800 I paid for them 3 years ago and easily beat the S/R Torquers I did have on it

[Rick WI]

Originally Posted by Mustangsaly

well I guess I'm asking are they a good performance head ? what aftermarket performance head are the equivalent to ?

They have a 200cc runner but they don't flow anything near what a more currently designed 200cc runner does. They have an absolutely terrible exhaust port and the chamber on them is really nothing to write home about. It's quite an old style aftermarket head. Compared to a stock 70's chevy head it's an upgrade, but that's about it.

A much better performance buy on the budget would be a set of Vortecs. For a few hundred more you can step up to an entry level aluminum head from Patriot or shop around for a used set of Performer RPM's.

To me, that set of heads is worth no more than $300, simply because it's just not a great aftermarket cylinder head.