Heres the scoop. I have a 383(who doesnt?)If I ever get around to freshing it up,bought it second hand.Its going to get a set on highly ported 462 heads with a T-ram on top( I'm not sure if I build cars or collect car parts) I have a good used cam but I think its not quite what I want. Off the top of my head I cant remember what its specs are but I know I have it writen down some where. Any ideas on what you might run if you were me?

 

what compression? what size valves in the head? How ported are they? Any numbers on runner cc volume or flow numbers?

 

Heads have 2.02,1.60 valves.The intake ports have been opened up to 2 inches tall by 1 1/4 wide, exhaust is 1 7/16's wide by 1 9/16 tall, Never had them flow tested. I'm sure the is a formula to figure out an aproxamte runner volume. The cam I have I can not find any thing that tells me the who made it maybe some one will recognize these numbers and may be able to tell me more about it. the guy I got it from had it in a 383 with AFR heads and a miniram. oddly enough its the same 383 I now own.(with a different cam in it now, was told that cam is too big for what I am building) The smaller cam I might use has these numbers on itStamped)4714-T (etched)MB0192 and E275H-R14. Thats about it

 

that designation reminds of how comp cams and some others describe their cams, 275H would imply 275 advertised duration and H means hydraulic cam. R14 would imply something like a 114 LSA but I could be way off here, i'm just guessing

Is this a hydraulic flat tappet motor, or can you use a roller?

 

I think the cam you mentioned might be this one:
http://www.compperformancegroupstore...Category_Code=

Here is a page that has the specs:
http://www.compcams.com/Technical/Ca.../pdf/page9.pdf

 

Thats an LSx cam and wont work in a older small block. Not sure what his cam is, but without knowing the specs i wouldnt use it

for the T-ram assuming rpm range up to 5800 rpms, i'd go with somethign in the 224-228 duration range on the intake. Lunati makes a nice 227/233 cam that should work. They make it both flat and roller setup

 

Good guessing on the Comp Cam.....You may be right or close.But it dosent have the CC stamped on it as most comp cams I have seen usually do. It is NOT an LSX cam. This cam come out of the engine I am building before the guy I bought it from put a ZZX from TPIS in it. Now I have both cams, unidentified one and the ZZX cam.And its a roller by the way

 

zzx is a great cam for bigger heads like a 200-210 cc runner but can work ina 195. I'm not sure how ported your heads are and what the runner volume is but i dont think it will support the ZZX cam.

i'd go something smaller for sure, something in the mid 220's duration on a bit tighter LSA 110 or so. Maybe as high as a standard 230/236 cam as the Tram will support those rpms. 230/236 on a 383 is a mild cam, i'd go that way for an off the shelfer. Lunati 227-233 or comps 230/236 or cranes/GM 846 cam which i think is a 222/230. Comp also has the 503 grind which is 224/230. Any of those cams should be nice with those heads assuming you have the springs for the lift ranges

 

Yeah I didnt plan on useing the ZZX. I'm hoping I can sell it. It just happened to be in the engine but I knew before I bought it it was too big for my build

 

the guy before me had AFR heads and a Miniram

 

Found out what the cam is,it is a Comp Cam 218-223 duration,510-510 lift,114 LSA. It should do well.....but no one likes my heads(Story of my life)LOL

 

ok those appear to be in the right range of what i expected. its hard to say what your heads are capable of without knowing the flow specs and port volume

 

I am going to get a price on flow testing the heads I have and compare the numbers to a set of Trickflow twisted wedge heads i can get my hands on.I need to find out more about the RPM range of the T-ram. Even if the cam I have is the right cam for my heads and intake, I am seriously considering buying a new cam with a 7-4 swap. Which if my reaseach is correct should give me a few more horses.....some times I can only hope....LOL

 

you wont need the 4-7 swap. It only starts to show the gains in power on more radical motors that rev higher and can take advantage of the change in firing order.

 

Looks like my heads may be the next problem.Found the specs on my pistons and with w 462 heads with 64cc chambers it would put compression at aprox. 11.3:1. I think thats gonna be a bit much for cast iron heads