We are currently working with Mike & Darrin over @ Profiler Heads with some designing/testing with there new street line of heads. Our first test was with a nice streetable 355 build that consistantly hits 408hp/414tq. The build is as follows:
Edelbrock Performer RPM #60899 64cc Head 170cc runners, 2.02/1.60
350 4 Bolt, 1pc .030 over
Scat 9000 Rotating assembly 10.1:1 Compression
HYD Roller Cam 220/224 @ 50 528/536 Lift
Aluminum 1.6 Rocker
Edelbrock Performer RPM Intake
Holley Street Avenger 770CFM
HP = 408 @5600RPM
TQ = 414 @3900RPM
After getting the heads from Mike & Darrin we were VERY impressed with the casting as well as the machine work done and Mark Johnson gave his approval. They have ALOT of meat for porting. After getting the proper springs, studs and guide plates worked out we ran into a small snag. The heads would not clear a 1.6 rocker. We decided to just use a set of 1.5's we had and see how it would perform. The Profiler heads were 64cc/ 195cc/ 2.02/1.60 Valves, everthing else the same other than the rockers and we decided to use an Edelbrock 650CFM carb. After a few pulls we saw 404HP @5600RPM/438TQ @ 4000RPM. Dropped just a few HP, but gained 24ftlbs of torque and again this is with a 1.5 rocker rather than the 1.6 thats normally used.
We are VERY IMPRESSED with the heads, not only because the quality and attention to detail that went into these heads, but also the fact that they are a bit cheaper than the Edelbrock Heads as well. They are now retooling the heads to our specs and to be a more common/streetable performance head. I would recommend these heads to anyone looking for a great performance head at a great price. Next we need to compare them to the AFR/Dart heads....we feel pretty confident that they will be right up there with them if not better. If anyone is looking for a set, let me know
We will be testing with a 383 Stroker here in a few weeks. I will let you know how that ends up :thumbsup:
The main purpose was the bang/performance/quality for the buck. Every aspect of the head was better and for less money :thumbsup: With the 1.6 Rocker we expect to see upwards of about 425hp/450tq....How much does Horsepower cost and mean to you????
they are a bit cheaper than the Edelbrock Heads as well... I would recommend these heads to anyone looking for a great performance head at a great price.
Customer wanted a 650 carb on this build for streetability. These edelbrock 650cfm carbs are very nice and always put out great numbers. They had it pulled from the dyno before I found out about it...I wanted to see it with the same carb as well!!!
Yep, that's me. I have been here one year so far. Its been fun.
The 195cc SBC port with a 2.020 valve flows really well in as cast form as you can see from the flow curve below. Anyone cutting the seats with a decent valve job can end up with an easy 265cfm to 270cfm. on average the flow will level off at about 270+cfm. These ports are "velocity limited" as you can tell by the flow curves shape. This makes them well suited to 350-383cid engine operating in the 3000 to 6800rpm range. Due to the velocity characteristics of this port it will come on the torque curve very quickly and maintain a very flat curve over a pretty wide range of engine speed. If your looking for a head that goes up to 7500rpm then obviously you need the 210cc or even the new CNC 225cc heads. The 195cc was designed to give mind numbing Torque and mid range yet still deliver a little more top end power for street strip applications.Chamber range from 72cc to 64cc. Valve sizes are 2.020 for 4.00" to 4.060 bores and a 2.050 for anything over 4.060 bore diameter.
The casting is capable of very large port volumes as high as 265cc and the port roof can be raised .387 from stock. Just about any wall can be ported out or moved .280-300 without breaking into water. With special order heads you can use valves that are .250 longer and raise the port roof that amount if you wish as well. This casting was designed with head porters in mind. If you really want to go for it, there's room for it!
FLOW PRO Data Report
________________________________________________________________________________
No. Test Name Date Max CFM Avg CFM Operator
--- -------------------- ---------- ------- ------- ---------------
1 first productioni001 2/2/2009 275.4 246.2 DARIN
where were these heads when i was looking to finish off my top end.. lol
what is the cross section width of the 195cc head?
i am always on the lookout to upgrade since i am not satisfied with the performance of my engine and the 180cc heads with 2.00 cross section width.
I am going to try a set of the 230 cnc heads when thay come out and compare them with the dart cnc 227s for some real world results. Trying to get a soild tenth out of them.
So were are the flow numbers for the the 195 Pro-Filer heads? On your website.
Whats the standard shipping spring installed in both the 195 and 210?
Lift before coil bind, open/close pressures.
Thanks.
We are still working on the info sheet for the web site. The standard springs are 1.500od 125lbs seat and 345 open. You can use up to a .650 lift cam. We should have all the info up on the site soon.
I am currently tinkering with one now. The thing about SBC intakes is you cant make just one. Street/strip, 350-440cid engines, 3500 to 7000rpm or 5500 to 8500rpm. The combinations are so varied that it really takes three different ones if your going to do it right. I was thinking of making a Semi-Ram set up for one carburetor. Just an all out nasty fricken high rpm bad boy for 400+cid engines turning 7800-8500rpm. Most racers are not as concerned with hood clearance and I like that! Anytime you have to take packaging into consideration the designs power potential ends up compromised. The problem with making only one manifold like this is that it limits the market share and the bottom line for any new product is the fact that it must sell in order to justify the expense of R&D and production. I am still kicking some ideas around. I will come out with something. I just have not decided how radical I am going to get.
Just got the first test piece of the new 220cnc SBC heads. The flow figures below are with a 2.080 valve and production valve job with no blending or tweeking. This is how they will be out of the box. It will be a couple months before they are in production.
Was this a prototype head or will these not accept 1.6 rockers?
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