Used Diamond W2 Aluminum Heads Yay or Nay?
Thanks for the thoughts. I will definitely get them checked out and pressure tested, valve guides checked, and measured before I buy them.
I believe he said its a 2.08 valve. I'll make sure they check the deck thickness too.
Therein lies the dilemma. My car is in a grey area right now and I'm not sure what direction to go so I've definitely got some thinking to do before I buy anything or have my old heads ported. Do I make it a full on drag car, do I just make it a street car, or a combo of the two like it currently is... It seems like I have to compromise to have it do both and its costing more to try and do it too. With it having a 4 speed and 540 ft/lbs of torque and being mini tubbed it destroyed my last clutch within a year with only going to the track a couple times so that's why the motor and trans is currently out and why I'm even considering either porting my heads or buying these W2's.
If I go the combo street/strip car I would either port my Eddy's or buy these W2's in which case I really should sell my 23 spline and get an 18 spline. If I go full race I'd likely sell my 23 spline and convert it to an auto. Still would be getting the eddy heads ported or get the W2's with that option. Last but not least option is I make it just be a street car in which case I just replace my clutch, keep the 23 spline, and not upgrade the heads or switch them out but then I'd have to start saving up for a separate drag car which might take years and years and years to save up for :/. decisions decisions
First off, unless your car is morbidly obese, and you are dropping the hammer at 8k plus, no way on this green earth do you need an 18 split input. Jaunt don't need it.
You need the correct clutch. I have preached this for years and years. In fact, I just watched a video the other day about a ford guy with a high 11 second car test between a 5 speed and a PG. no matter what, the stick was quicker and faster.
As is typical, they used about the most junk clutch you can buy and it showed in the video. That clutch beat the car and the tire like they stole something. They were wasting another tenth and half to two tenths. Easily. Spend money on a clutch and your world will change.
Those heads won't know if it's on the street or the strip. Sit down with your engine builder and discuss what you want. I've posted the pictures on my heads on here with that same port. So I know what it is, and what it isn't.
That head, on 340 inches at 7000 RPM, done correctly will easily push 580-600 HP. Easily. On flat solid lifters. Maybe 630-640 with a GOOD solid roller.
If I was doing it, you be at damn near (and maybe at) 12:1 compression. I'd weld and fix your intake, and make and weld up a top to make it Dominator flange and hook you up with a custom Dominator and watch it ring the bell all day long. On pump gas. Like falling off a log.
That's what they are capable of. If (and it's a big IF) you sit down and make a plan, and then stick to it. And I forgot, you need quality headers.
You'd be surprised how easily it would drive on the street and turn heads at the track.