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View Full Version : AFR 185 comp heads are on!



Killercanary
11-10-2008, 03:42 PM
I spent the weekend thrashing on my car to get my AFR185 comp heads and probe shaft mount rockers installed. It was a LONG and grueling weekend but the car is now up and running. I decided at the last minute (which is typical for me) to do this before I race the car at Cecil County Dragway this weekend at the SSOTN race. I was going to wait and do the swap over the winter, but I wanted to see how it would run NA with these heads. I was running my old AFR 165 pedestal heads but I feel at was just about at their flow limit on my combo. Despite having flu like symptoms and puking my brains out on Saturday, the car fired up yesterday and I took her out on a drive. All was going well considering until I noticed my lights growing dim. I pulled over and discovered in my sick state I had forgotten to plug in the alternator. LOL! So I called yeahloh95 up and he helped push it so i could catch it in gear. I'm going out a little later to start tuning it but I made a quick WOT run in 3rd gear up to ~5800rpms and OMG, what a difference. My datalog shows that I'm a full point lean now in some spots which is a clear indication that I'm making more power now! Besides the WOT run, this thing is snappier EVERYWHERE. Even cruising in 5th at 40mph, when I just start to touch the throttle there is instantaneous response. The car is much more smooth now too and according to Jason a lot of it has to do with the extremely high velocity intake port and great flowing/scavenging exhaust port on these heads which help to prevent reversion in the lower RPMs and I'll tell you what, this is something you can actually feel without a doubt. I thought that I may lose a little down low going from my 165's to these 185s and the opposite seems to be true according the SOTP meter. I'll have hard numbers soon to hopefully back up the butt meter, but I'm extremely impressed thus far with how much I can actually feel is different with the car now. This may seriously have been one of the biggest SOTP meter improvements I've felt in this car after changing something on it.

Probe shaft mount rockers...
http://www.mustangmods.com/ims/u/617/12394/263147.jpg

The probe shaft mount rockers cleared under these TF VC's when I used a thick fel pro gasket. I'll be sanding off the trick flow name and powercoating them this winter, I just didn't have the time to do it now.

http://www.mustangmods.com/ims/u/617/12394/263148.jpg

All buttoned up...

http://www.mustangmods.com/ims/u/617/12394/263149.jpg

Rio94gt
11-10-2008, 03:44 PM
Sweet.

yeahloh95
11-10-2008, 04:13 PM
after the push start last night i was about ready to fall over that cars heavy lol

MustangMike
11-10-2008, 05:01 PM
I wondered if I might find a post about your car on here, since I haven't heard back from you...I figured you were busy getting it ready! LOL! Nice rockers! We put a set of jesel shaft rockers on my dad's chevelle - LOVE THEM! Lash seems to stay tight longer (they're on AFR 335's with a BIG solid roller cam though), not to mention the power they free up.

Looks good man, can't wait to see it run. Do you still want to borrow my wheels/tires? Let me know!

Mike

Viper_ed
11-11-2008, 12:10 AM
I'll be sanding off the trick flow name and powercoating them this winter, I just didn't have the time to do it now.


Don't do it! You'll lose big time power for sure! Pure Stock and cam303 will back me on this!

gmkillr
11-11-2008, 12:18 AM
Nice!:thmbsup:
Can't wait to see her run this Saturday!:highfive:

Rodeheaver's
11-11-2008, 09:56 AM
looks great, did you have to shim the probe shaft mounts to get the valve train geo . correct??

Killercanary
11-11-2008, 10:44 AM
Mike- I just sent you an email. I'd love to borrow your wheels/tires if at all possible. My ET streets from 1999-2000 just aren't cutting it anymore.

Troy- thanks again for the push.

Ed- haven't you seen the light yet? AFR FTW! :sticktonge: Honestly, I hate when any part has their name embossed in it and I plan to remove the "holley systemax" for the intake as well for a cleaner look.

Rob- ME TOO!


looks great, did you have to shim the probe shaft mounts to get the valve train geo . correct??

Yes I did Tim. I needed ~.090" of shims to locate the roller properly on the valve tip, I also ended up needing 6.250" pushrods. The swept area was a little larger than I wanted but it was still within spec...

http://www.mustangmods.com/ims/u/617/13463/262755.jpg

cam303
11-11-2008, 01:12 PM
Don't do it! You'll lose big time power for sure! Pure Stock and cam303 will back me on this!

You beat me to it Ed.

mlowry1260
11-11-2008, 09:26 PM
Paul,

glad to hear the change of heads worked out so well. Are those LSX style valvesprings?

Does the systemax match up well to the heads?

yeahloh95
11-13-2008, 11:03 AM
mark they are the smaller dia. springs i have a set to put on my 165's