DCR Pro Series Cylinder Head

Discussion in 'Engine & Performance Modifications' started by DCRRACING, Mar 27, 2008.

  1. Mar 27, 2008 at 8:10 AM #1
    DCRRACING

    DCRRACING Supporting Vendor

    Messages:
    206
    Likes Received:
    0
    Joined:
    Dec 6, 2007
    DCR Pro Series Cylinder Head Info

    Regular price is $2890.00 and is on sale for $2595.00 The turn around on your supplied core is 2 weeks. We can build on off of one of our core heads for a $400.00 core charge.

    The DCR Pro Series Head includes:sly:

    -DCR Exclusive Head Intake and Exhaust Machining & Porting
    -DCR Exclusive AntiReversion Exhaust Ports
    -DCR Exclusive Spherical Shaped Combustion Chambers
    -DCR Head Reinforce Pinning
    -DCR Cam Journal Chamfer
    -DCR SS 1mm Over Intake Valves
    -DCR SS 2mm Over Exhaust Valves
    -DCR Exclusive Valve Back Cutting
    -DCR Head Precision Jig Head Resurface
    -DCR Patented Serdi Full Radius Valve Job
    -DCR Exclusive Valve Springs
    -DCR Exclusive Light Weight ChromeMoly Retainers
    -DCR Single Grove Keepers
    -DCR Valve Seals
    -DCR Oil Flow Modifier

    Shipping is additional and there is no core charge if you supply your own head for service.:thumb3:

    Send your head in and get the best cylinder head work available period:sly:

    This is the same head that we used on the "Red Sled" last race season which ran 9.45@159mph in the 1/4 mile.

    If you have any questions just give us a call at the DCR Speed Shop @ 1-276-956-2082.

    Thanks, Nubs @ DCR
     
    Last edited: Apr 3, 2008
  2. Apr 3, 2008 at 12:47 PM #2
    DCRRACING

    DCRRACING Supporting Vendor

    Messages:
    206
    Likes Received:
    0
    Joined:
    Dec 6, 2007
    Now is the time to upgrade your cylinder head. You want to see what your car really can do install one of our DCR Pro Series Cylinder Heads on it and hold on. It will wake the beast up.
     
  3. Apr 18, 2008 at 9:04 AM #3
    DCRRACING

    DCRRACING Supporting Vendor

    Messages:
    206
    Likes Received:
    0
    Joined:
    Dec 6, 2007
    Here is a before and after a DCR Pro Series Head

    Hey,

    Ran the car again on the dyno just to get a current baseline before putting the ported head on. This was with 94 octane and 3 cans of octane boost... don't ask me why it's holding again, but it is.

    393 hp and 417 lb/ft

    Probably could of cracked 400 hp if I had wanted to give it a bit more boost, but really just wanted a baseline before modding the car any further. This was exactly how I had the car set up when it went 11.43, so I didn't really want to mess with it.

    Will have another dyno in a couple of weeks after the head is installed. Going to install it without cams initially and see what kind of gains are to be had with a good flowing head. Here's hoping for 420 or so.

    Here is the After

    Okay, here are the results, took awhile, but worth it!


    Peak gains.............. 21.11 hp and 23.54 ft/lbs.

    Gains @ 4500 rpm.... 46.66 hp and 54.5 ft/lbs.

    Gains @ 6000 rpm.... 29.57 hp and 25.82 ft/lbs.



    Everything else the same.. just bolted on the DCR ported head. Car is obviously running out of cam in the upper end.

    Final #'s were 414 hp and 447 ft/lbs. This should put me a little bit closer to the magical 10's.

    Now to find the perfect set of cams.

    If you have any questions just give us a call the DCR Speed Shop @ 1-276-956-2082

    Thanks, Nubs @ DCR