BuiltZMotors is clearing out some inventory. We have two of the stage IV cylinder head packages listed below. These normally sell for $4600 (+$600 core charge) with cams. We are offering these heads at a special price of $3900 shipped anywhere in the US (+$600 core charge) or $4400 without core.

Stage IV Head Package-WITH CAMS
redeck heads - to ensure mating surfaces between the block and the heads are exact
clean parts- prep before assembly- clean oil channels, outer surface, etc.
machine heads to accept ½” head studs- will still be compatible with standard 11mm studs as well)
Cams- GTM turbo spec cams
Full Ferrea Valvetrain:
Ferrea 1mm Oversize Intake and Exhaust Valves
Ferrea Heavy Duty Single Valve Springs
Ferrea Titanium Retainers
Ferrea Valve Spring Locators
Ferrea Valve Locks
Ferrea Valve stem seals
Ferrea valve guides
3 angle valve job: 30, 45, 60 angles on valve seat, 45 angle on valves.
Headwork-Extensive port and polish, intake, exhaust, bowl.
head assembly- valves adjusted to cams- (valve lash)
TESTING: All heads are pressure tested AND vacuum tested to insure integrity in the heads and that the valves are sealed and machined perfectly before shipped out to customer.
Our price: $4600!!!
+$600 core charge
(refunded when we receive your cylinder heads)

Exhaust ports:




Intake ports:




1mm oversized Ferrea valves:






In addition, we have one 100mm 3.8L Darton Sleeved shortblock with ½” head studs that is outlined below. This shortblock usually sells for $6950 +$1000 core charge, but is priced at $5800 (+1000 core charge) shipped anywhere in the US!!!

Sleeved Shortblock:
Arias ED Pistons 100mm,
GTM Rods,
Cometic Headgaskets (100mm),
ARP ½” head studs
ARP main studs
Pistons – Arias Extreme Duty 9:1 CR 100mm (estimated rating above 1300-1500rwhp!):
Rods- GTM
Darton Sleeves installed by GT motorsports, CNC machined cylinders (one of the only shops in the country to have one of these machines)
machine block (with use of torque plates)
balancing
polish crank
redeck block- to ensure mating surfaces between the block and the heads are exact(recommend having heads redecked as well)
clean parts- prep before assembly- clean oil channels, outer surface, etc.
rear main seal
main bearings
rod bearings
thrust washers

Our price: $6950!!!

$1000 core charge (refunded when we receive your motor)







An additional service that we will now offer to further aid in the reduction of a long engine build wait time is our ready to go SLEEVED shortblocks that are machined for 1/2" head studs.

Whether you would like us to machine, blueprint, and assemble your sleeved shortblock (or longblock package) or if you simply want the sleeved block for your own engine build project, we will provide the most convenient (no wait!), economical option for your vq35.



These sleeves are installed by Darton themselves. They have been decked and have been machined with timesert inserts to accept a 1/2" ARP headstud. The bare block will come with 16 ARP 1/2" studs, washers, and nuts.





PRICING:
Shipped anywhere in the US...

$2700 (+1000 core charge- refunded when we receive your shortblock usable core)

again... this is a bare block, machined with darton sleeves installed, machined for 1/2" head studs - use of steel insert timeserts (studs and hardware included)

NO WAIT!!! on the shelf!!!

-TODD
BuiltZMotors.com
505-480-1923

 

do you flow bench your heads and provide the doc's with the heads.

 

one of the sets of heads were port and polished by gtm, the other set by our head guy who did provide pre and post flowbench readings...

 

About how much more wheel horsepower/torque should I expect to see from the heads on a n/a motor? I guess I would need a different cam set-up from the turbo spec cams though?

 

tough question to answer... would definately go with a much higher lift n/a cam. I would expect with a high CR n/a bottom end and these high flowing heads and an aggressive tune, one could see a possible 20-40whp gain...sorry for my vague answer, maybe someone who is running a high hp N/A setup can chime in

 

here's the info regarding the GTM cams that come in these heads:

GT Motorsports® Turbo Spec camshafts for the VQ35DE
The GTM® Turbo Spec cams were designed by taking a complex set of variables into account. Turbocharger compressor maps and the flow characteristics of the VQ35DE were integral in developing the cam profile. The very specifications that were attained (following several revisions and countless computerized simulation trials) allow for the maximum possible volumetric efficiency over the broadest possible rpm range. Given the high exhaust manifold pressures (that exceed intake/boost pressures) found on turbocharged systems, volumetric efficiency, aside from duration/lift, is also dependent on internal exhaust gas recirculation, which is a function of intake/exhaust cam overlap. The specifications below minimize that overlap, while retaining the highest practical cam duration, to yield the highest possible performance.

Specifications
Intake: 256 deg (stock 238)
Exhaust: 264 deg (stock 240)
Lift: 0.423” (intake and exhaust)
Overlap: 18 deg (at 0.045” lift) – less than stock

 

sleeved shortblock sale pending, still have 2 sleeved blocks available and 2 sets of port and polished big valve heads!

 

Hey man, just checkin in with ya. I made over here with no major issues, and can't wait to get back and get that motor installed. I Should know within a month or so if i'll be getting the Heads, so i'll keep ya posted on that. Thats again for you help with my situation and I look forward to to putting your good work to good use.

Thanks again,

Nick

 

no problem man, be safe out there, keep me posted and we'll accomodate

 

bump

 

did you still have the built sleeved block?aint you sold it already?

 

sleeved shortblock is sold... heads still available, and i have one sleeved block available (not assembled, just rough sleeve install wth 1/2" head studs)

 

heads still available, and one sleeved block (rough- not machined)

 

bump for awesome heads-

price on heads dropped to $3800 shipped

best price you will find on stage IV heads, need to move some inventory, pm me for details