Help me Select some parts

[68GT500MAN]

I have pulled the 427w from my roadster so that I can replace all bearings and the cam. What are your suggestions for a new hydraulic flat tappet cam? While it is out I am thinking of replacing the iron heads with newer aluminum ones, any thoughts there? Thanks for all recommendations. I am leaning towards the new AFR heads.:o
Doug

[306rangerfordguy]

I have AFR heads on my 347 and have been pleased with them. I can't help with the cam selection. Maybe call Comp Camp Tech line?

[OVCobra]

I too am running AFR Renegade 185 cc on my 347...no road time yet but the flow numbers are outstanding. For a 427 would need to step up to bigger inlet volume...205 cc flow 331 cfm and 220 cc flow 338 cfm!
You did not mention whether your 427 is a forged crank or cast...need to establish max practical engine speed to select heads. I am trying a Comp Cams Extreme Energy series cam, again no road time so can't tell you much but may want to consider XE284H if you have a cast crank or XE294H if you have a forged crank (screamer). Of course you can find comparable choices on heads and cams from other manufacturers but they should be selected together based on your short block.

Dave

[Bob Cowan]

I like Dart heads. The specs don't look all that impressive. But I'm using them to make 600+ hp. They're an excellent value.

For the cam, I would start by using a hydraulic roller; less risk at start up and break in, and better selection. Then take a look at Comp Cams, specifically the stroker cams. I'm using the second one down on the list, and I get a really flat torque curve and excellent street manners.

[68GT500MAN]

Thanks for the answers. Bob I will check out the Comp Cams website, do you have a part number?
Doug

[Bob Cowan]

This is the cam I use now. http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Code=35-776-8&Category_Code=F50COMP

CC used to produce a cam with more duration and lift. I used that one for a while, but at last rebuild I installed this one. I lost a little bit of upper rpm torque, but picked up a bunch of low and mid range torque. Makes the car much easier drive on the track. Oddly enough, I did pick up a little peak HP.