TSP .660" Dual Spring Kit w/ PAC Valve Springs, Titanium Retainers, Seats, & Seals
CHE Bronze Guides
Completely Assembled and Milled to Your Specifications
60-68cc Chambers
All PRC cylinder heads are extensively researched and tested. The all-new PRC aftermarket casting LS3 cylinder heads are designed to flow considerably more than a gm ported casting while keeping the port sizes smaller for improved port velocity. The result is a cylinder head that is smaller than a stock GM LS3 port and moves more air than any other ls3 cylinder heads!
The all new PRC aftermarket casting LS3 heads are the perfect option for customers looking for the ultimate in LS3/L99/L92 cylinder head technology
The PRC aftermarket casting LS3 cylinder heads are available in 2 different configurations:
255cc Runners for max effort stock cube LS2/LS3/L99/L92 engines looking for a 370cfm cylinder head that can be aggressively milled & still keep better than stock p/v
260cc Runners For LS3/L99/L92 stroker engines needing a 380cfm+ cylinder head!
The 13-degree valve angle will allow for the ability to run more compression and larger camshafts thanks to additional piston-to-valve clearance!!
Lift
Intake Flow
Exhaust Flow
.200"
157 cfm
117 cfm
.300"
224 cfm
170 cfm
.400"
279 cfm
205 cfm
.500"
329 cfm
225 cfm
.600"
360 cfm
235 cfm
.650"
372 cfm
240 cfm
.700"
380 cfm
243 cfm
With all PRC cylinder heads, quality and performance are our two highest priorities! In addition to performance, you will not find a better performing set of cylinder heads at this price (cost is for the pair!). Call one of our sales consultants today if you have any questions or if you would like to discuss your specific application.
The legacy continues … and now it is bigger, better, and faster!
Built for enthusiasts and professionals, MPV13 is the fastest most sophisticated OBDII interface device to date, and Pro is the new standard. Take advantage of Pro Feature Set capabilities, like standalone data logging and PROLINK+ compatibility (sold separately) already built in. MPVI3 redefines the limits of speed and control with faster standalone data logging and two times the storage capacity compared to the previous generation. Log more runs (faster) and store more calibrations on your MPVI3, all with the convenience of eliminating your laptop from the equation.
HP Tuners VCM Suite MPVI3 Credit Pro packages equip you with the most inclusive scanning, logging, and calibration, making them the only tool you need in your toolbox. The MPVI3 connects your vehicle's control modules to HP Tuners' VCM Suite software. You can run complete diagnostics, monitor vehicle performance, read from various vehicle control modules, and more in VCM Suite. Optimize your performance, fuel economy, or whatever your vehicle goals may be in VCM Editor with a multitude of defined parameters. When you are ready, license and tune any vehicle currently supported by HP Tuners with the fastest read and write speeds available. Connect, read, edit, write, drive; HP Tuners VCM Suite MPVI3 Credit Pro packages are offered with or without tuning credits.
Troy F.
MOT's is the BOMB!!
Roger M.
When I first watched others plugging computers into computers, to say the least I was intimidated. I’m not a tuner and struggle accurately describing to a tuner what’s going on. HP tuners solves the problem. Now we can make a pass, playback the run and most importantly share with others that can help. So, if you’re on the fence, take a chance and learn something new, I consider this a must have tool in the box.
David D.
Leaning experience but we'll worth it!
GM LS7 Lifter Set - MailOrderTuner
Regular price
$180.00
Save $-180.00
IN STOCK
NO MANUFACTURER WARRANTY ON THIS PRODUCT
GM/Delphi LS7 style replacement stock lifters for all LS engines without active fuel management! These lifters are the replacement part for anyone looking to upgrade their LS engine with a new set of GM lifters. They are also a great option for those wanting to remove the factory AFM/DOD lifters from their L76, L99, or gen 5 LT1 engine. These lifters have several upgrades that make them a perfect addition to your LS or gen 5 LT1 build.
*Non-DOD Applications Only
C6 Corvette Email Tune | MAILORDERTUNER
Regular price
$300.00
Save $-300.00
Our email tune is the fastest, cheapest way to get tuned in a few easy steps:
Fill out our handy online form during checkout
Email your tuning file to mailordertuner@gmail.com
We’ll email your tuned file back to you ASAP, usually within 1-3 business days
Note: you must have your own tuner such as an MPVI2+ to install your new tuning file.
Want an email tune but need a tuner? Check out our handy bundles to get an MPVI2+ with two tuning licenses along with your tuning file at a $25 discount! Select overnight shipping for the fastest possible tune apart from a pure e-tune.
Corvette Mail Order Tune | MAILORDERTUNER
Regular price
$300.00
Save $-300.00
Just fill out your handy online intake form and mail us your computer.
There is complete 3 page form to list your modifications. (For example, Camshafts, Tire size and DOD Deletes.)
We strive for 1 day turn around! This includes engine and transmission controllers!
Russell C D.
I have a 2011 grand sport corvette ls3 with auto.I needed it tuned for the new cam and to delete rear o2 sensors. Also car had a low idle. Can't believe how quickly I got it back definitely 5 star on shipping. But I still have a code for one of my rear o2 sensors and car idles to high I can barely hold it at a stop sign,and can not hold the car at all on dirt. I have to put it in neutral on dirt. They didn't advance the timing enough for my cam ,I am willing to bet it was advance half of what it needed. I understand the whole creeping up on it theory ,but I think it was more job security hoping I would send it back. It is a shame that, what use to take a 9/16 wrench and a 25 dollar timing light , people are trying to make a career out of.
Corvette Email Tune | MAILORDERTUNER
Regular price
$300.00
Save $-300.00
Our email tune is the fastest, cheapest way to get tuned in a few easy steps:
Fill out our handy online form during checkout
Email your tuning file to mailordertuner@gmail.com
We’ll email your tuned file back to you ASAP, usually within 1-3 business days
Note: you must have your own tuner such as an MPVI3 to install your new tuning file.
Want an email tune but need a tuner? Check out our handy bundles to get an MPVI3 with two tuning licenses along with your tuning file at a $25 discount! Select overnight shipping for the fastest possible tune apart from a pure e-tune.
Texas Speed and Performance Cathedral "Dual Spring" Cam Package
Regular price
$786.99
Save $-786.99
Your Choice of Camshaft, TSP Spring kit, and Hardened Chromoly Pushrods
This Package Includes the Following Items:
Your Choice of Camshaft
Includes TSP .660" Dual Spring Kit w/ PAC Racing Polished Springs, Titanium Retainers, Hardened Spring Seats, and New Valve Stem Seals
Texas Speed Hardened Chromoly Pushrods
We have two options listed for our dual valve spring kits. The default option will use our PRC integrated one-piece seat and seal that simply pushes in place. The other option is for the separate two-piece seat and seal that you typically find in any dual valve spring kit. The two-piece kit will require separate installation of the valve seals after the seats are in place, and it does require a specific tool to make sure that the valve seals are installed properly (i.e. not crooked, torn, or not installed fully). Our integrated seat and seal will make your installation much easier because it is virtually impossible to install it incorrectly! You can choose either kit for no additional charge. We have a picture listed when you select each spring kit so you can see the actual differences in the two kits.
This is the perfect upgrade package for customer looking for all the aftermarket parts needed to do a camshaft swap. Typical gains will range from 30 to 65 rear-wheel horsepower from a TSP camshaft swap alone!
We do offer the optional adjustable pushrod length checker that allows you to verify the correct pushrod length needed for your setup. We can give you a good idea of what is typically used with your engine, lifter brand, etc., but it can certainly vary from setup to setup. You can vary up to .050" in pushrod length depending on which camshaft core the cam manufacturer uses! This is NOT information that any camshaft manufacturer includes with their camshafts, so it is always best to verify the length you need to avoid any valvetrain issues.
Because we cannot stock every camshaft with every lobe separation angle, if you need parts quickly, we encourage you to call us to check availability of the camshaft you want. The LSA(s) we typically stock for each camshaft is listed next to each camshaft. Some camshafts will have to be custom ground and drop-shipped from the manufacturer directly to you!
