in my opinion yes. pro1 200s be better choise especially if a street vehicle. i went AFR competition port 195s on my 383 in my nova. im happy with the performance so far. in my opinion many choose heads that are too large for application today.

 

want to see street/strip duty.. I thought overkill as well.

 

For a 383 cid I would use a 195cc - 215cc head for the street and depending on camshaft and compression. I wouldn't buy a set 210cc heads for a 9:1 compression engine with a camshaft duration of 205-215. The 220's and 230's are for all out racing.

 

The compression is around 10:5 to 1. Have pro topline heads which I think used to be rhs.. Think I will try the 195cc

 

Which Pro TopLine head do you have cast iron or aluminum? Do you know the runner size? Also have they been ported any?

 

Your compression is good, as well as your displacement. Just curious, but why the head swap? If they're 190ccs I'd leave them and invest in a good roller cam. My friend has pro top lines (older aluminum ones) and his blown 383 runs well. The only reason I'd swap them is for a good ported 210cc AFR or similar head, but I think you stand to gain more from a modern roller cam. I have the 286 magnum in a much smaller motor, it sounds and runs well, but the grind is very dated, I think from the mid 80s, for all of the magnum cams. That 383 is going to want lift, and .500" with good heads, you're not using the head to it's full potential.

 

I am with AJ on not replacing the heads. Comp Camps Hyd roller kit comes complete with everything you need. Even new valve seals and timing chain and gears. http://www.summitracing.com/parts/cca-k08-306-8

 

Had an XR292R in a 406SBC 10.5:1 with 200cc Protoplines Ironlightnings...went a best of 11.30 @ 119. (the heads had a little work done)

Protopline was a good head, then had issues and sold to RHS.

That 230 head will be a little big IMO and there are some better choices out there.
give these guys a call/email and tell them what you have and goals

http://www.profilerperformance.com/
or
http://speierracingheads.com/

 

The heads are iron. I believe they are 2.02 and 1.60

 

No porting

 

Well now this changes my opinion on buying heads. If I was you I would a pair of 195cc Profiler Heads with 2.02/1.60 valves, your choice of 64cc, 70cc, and 72cc chambers. Buy them bare for $950 and have your own valves installed since the springs,retainers, and locks come with the cam kit. http://www.profilerperformance.com/racing/cylinderheads/sbc-23-degree. Check them out, these heads are made in USA and are just as good as Brodix, RHS and the others. I would sell the iron Pro TopLine heads to help pay for the roller cam I mention in another thread.

 

I agree with the above, you would benefit from a good al head in this case. If you can't swig a roller, I would go a different route with the HFT cam, a better grind, and if it were me, I would go with solid. There's not really any downside aside from checking lash, but who doesn't like to tinker on their car every now and then. Bottom end it will idle better, better vacuum over a big hft, and you won't have to worry about lifter pump up when you spin to 6k, and with a 292, you will be spinning to 6k.

 

292 and 6K....better think a little higher
the SR I was running was 72-75..would go higher but no better ET.