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Engine Internals - Buyer’s Guide

Beef up your bottom end for more power and longevity.

Oct 16, 2011

Once you’ve freed up a motor’s breathing, the desire for more power doesn’t stay away for long. The quest for more juice has plenty of routes to be taken, be they NA or forced induction. Regardless of which path you choose, it’s wise to consider your engine’s guts before jumping in headfirst. The parts featured in this guide are designed to create power and withstand the stresses associated with a highly built motor.

Brian Crower
Subaru EJ25 camshafts
These new billet cores fit the EJ257B head and feature dual AVCS on the intake and exhaust sides. CNC ground from state-of-the-art Schaudt grinders, the BC camshafts are available in a 272 spec as well as a 280 race spec.
runbc.com

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Brian Crower
Heavy-duty I-beam connecting rods
Brian Crower delivers heavy-duty I-beam connecting rods for a variety of turbo applications. The rods are CNC machined from aerospace-grade 4340 steel billet material and feature ARP fasteners in your choice of ARP2000 or the premium upgrade ARP625+ bolts. BC I-beam connecting rods are available for the Mitsubishi 4G63/EVO and EVO X, Nissan SR20 and VR38, as well as the Subaru EJ-series engine platforms. Rated in excess of 250 hp per cylinder, these are the only rods you’ll ever need.
runbc.com

Modp 1111 02+engine internals buyers guide+brian crower connecting rod Photo 3/30   |   Engine Internals - Buyer’s Guide

BlackWorks
Valvesprings
These dual valvesprings are designed and engineered for high performance race/street conditions. BlackWorks dual valvesprings provide maximum lift while preventing valve float and help counter the effects of spring surge. These are a great match for naturally aspirated and forced induction engines. For maximum results, use with BlackWorks Ti retainers and high/low compression valves.
bwrusa.com

Modp 1111 03+engine internals buyers guide+blackworks valve springs Photo 4/30   |   Engine Internals - Buyer’s Guide

BlackWorks
Retainers
BlackWorks CNC-machined retainers are made from the highest grade titanium available. BlackWorks Ti retainers are machined to exact specs to help reduce the valvetrain’s overall weight and provide some of the greatest assurance from premature wear associated with high rpm. For maximum results use with BlackWorks valvesprings and valves.
bwrusa.com

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Carrillo
Connecting Rods
The Carrillo connecting rod is a precision, high-strength, quality connecting rod, and when properly installed and maintained will perform flawlessly in today’s racing and high-performance engines.
cp-carrillo.com

Modp 1111 05+engine internals buyers guide+carrillo connecting rods Photo 6/30   |   Engine Internals - Buyer’s Guide

Jim Wolf Technology
In-chassis valvespring tool
This tool allows a single technician to replace valvesprings in a safe manner, without removing the cylinder heads from the vehicle. By incorporating a modified follower bucket to compress each spring, the retainer locks can be set on top of the follower and moved safely into place, leaving both hands free to precisely complete the job. It can also be used with heads off the engine.
jimwolftechnology.com

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Kelford
Honda K-series camshafts
Designed specifically for the street enthusiast, the Kelford 179-A series cams provide a significant improvement in horsepower and torque when compared to stock TSX cams and are designed to use the OEM valvetrain without any upgrades. The primary and intermediate lobes are fractionally larger than the TSX and the main lobe features more area for increased mid-range and top-end performance. Gains of 30+ whp have been achieved with quality bolt-on parts.
motovicity.com

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King Engine Bearings
XP engine bearings
The enhanced tri-metal, copper lead construction with nickel barrier of the XP Bearings feature King’s proprietary SecureBond advanced adhesion process. Applications include popular Mitsubishi and Toyota motors, with more coming soon.
kingbearings.com

Modp 1111 08+engine internals buyers guide+king engine bearings Photo 9/30   |   Engine Internals - Buyer’s Guide

Modern Automotive Performance
Connecting rods
For those of you wanting the best rod available for your build, look no further than MAPerformance rods. Made from 4340 billet steel for the ultimate strength, these American-made, shot-peened, stress-relieved and heat-tempered connecting rods are sure to keep your EVO X running strong. These rods require no modifications to the block or crank to fit and come with 7/16-inch ARP fasteners as a standard feature.
maperformance.com

Modp 1111 09+engine internals buyers guide+map connecting rods Photo 10/30   |   Engine Internals - Buyer’s Guide

Blox Racing
High-compression valves
High-compression valves from BLOX Racing undergo a heat-treatment process to increase strength and are then coated using black nitride to provide superior wear resistance and minimize power-robbing friction. These valves increase compression by approximately 0.3 points.
bloxracing.com

Modp 1111 10+engine internals buyers guide+block racing valves Photo 11/30   |   Engine Internals - Buyer’s Guide

Blox Racing
Valvesprings
These valvesprings are designed and engineered for high-performance street driving and all-out racing conditions. Each set provides maximum lift while preventing valve float and helps counter the effects of spring surge. These are perfect for both naturally aspirated and forced induction engines.
bloxracing.com

Modp 1111 11+engine internals buyers guide+blox racing valvespring Photo 12/30   |   Engine Internals - Buyer’s Guide

Buddy Club
Racing camshafts
Developed, tested and proved by Buddy Club’s own race teams and engineers, the Racing Spec camshafts utilize one of the more aggressive designs in camshaft technology available today. Buddy Club’s patent-pending lobe forming technology increases low- to mid-range torque while maintaining a 12.8mm lift for high-end power.
buddyclub.us

Modp 1111 12+engine internals buyers guide+buddy club cams Photo 13/30   |   Engine Internals - Buyer’s Guide

Probe Industries
Forged pistons
Probe Industries has completely redesigned its entire line of sport compact and import SRS forged pistons for Honda (B- and K-series), Nissan, Subaru, Mitsubishi, Toyota and Z-Tec engines. Probe has utilized the latest in forging technology and design, making them even stronger and offering an even higher-quality forged piston than was previously available. They’re completely forged out of 2618-T61 aluminum and feature full-floating pins and are 100 percent produced and manufactured in the USA. These are great for the street racer and the all-out racer.
probeindustries.com

Modp 1111 13+engine internals buyers guide+probe piston Photo 14/30   |   Engine Internals - Buyer’s Guide

Ross Pistons
EVO X Forged pistons
To meet the challenge of dealing with incredible cylinder pressure in tiny 4B11 engines, Ross designed the strongest forging available for this bore size. These pistons come with 52100 high-tensile bearing steel wrist pins (pin fitted at no charge) and a gas nitride steel ring package. The compression ratio is a boost-perfect 9.0:1, and they’re available in standard and plus 0.5mm (.020-inch) oversize. Various coatings and gas porting are optional.
rosspistons.com

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Supertech
Racing valvetrain
Supertech stainless steel intake valves stand out for their precision and consistency. Heat treatment provides less friction for better heat dissipation than chromed valves. Dual valvespring kits are made with premium chrome silicon vanadium steel alloy for high performance and durability.
supertechperformance.com

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Skunk2
Racing valvetrain
Skunk2 offers a wide variety of high-performance valvetrain upgrades. Retainers, valves, springs, camshafts and cam gears are available for Honda B-, H-, F- and K-series engines, as well as newly introduced Subaru and Mitsubishi applications.
skunk2.com

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JE Pistons
Asymmetrical forged pistons
JE Pistons now offers the industry’s first off-the-shelf asymmetrical piston design. The unique piston skirt design reduces friction, while maintaining strength in all critical areas and includes JE Pro Seal Rings accessories.
jepistons.com

Modp 1111 17+engine internals buyers guide+je pistons Photo 18/30   |   Engine Internals - Buyer’s Guide

Inline Four
Pro-Cast pistons
Pro-Cast pistons are cast by the same industrial automotive manufacturer that produces OEM Honda pistons; that same OE quality is in Pro-Cast’s special 81.5mm and 82mm sizes with a molybednum skirt coating. With power and reliability at its finest, you can now have the increased displacement without the thermal expansion headaches of a forged piston.
inlinefour.com

Modp 1111 18+engine internals buyers guide+inline four pistons Photo 19/30   |   Engine Internals - Buyer’s Guide

Modern Automotive Performance
Head studs
These studs utilize an H11 material that’s much stronger than the typical 8740 chromoly and yields a tensile strength of 260,000 psi. They’re also provisioned with a hex broach on the top of the stud, enabling you to install them with the cylinder head on the car if necessary. The MAP Ultimate Duty head studs include an additional feature over other similar studs form A1 and ARP known as a “dog point” that seats the stud in the block and pre-loads the fastener for an accurate and repeatable torque sequence.
maperformance.com

Modp 1111 19+engine internals buyers guide+map head studs Photo 20/30   |   Engine Internals - Buyer’s Guide

Cosworth Performance
High-performance engine components
Cosworth high-performance engine components, including forged pistons, billet crankshafts, forged connecting rods and FSL head gaskets are available for a wide range of popular performance vehicles, such as the Subaru STI, Mitsubishi EVO and Nissan GT-R.
cosworth.com

Modp 1111 20+engine internals buyers guide+cosworth engine components Photo 21/30   |   Engine Internals - Buyer’s Guide

Jim Wolf Technology
Camshafts
Jim Wolf Technology produces more than 20 profiles for various Nissan engines, including the S1 at 260 degrees/10.8mm lift to the C9 at 283.5 degrees/13mm lift. Email JWT for profile recommendations for all motorsports, boosted and naturally aspirated.
jimwolftechnology.com

Modp 1111 21+engine internals buyers guide+jim wolf cams Photo 22/30   |   Engine Internals - Buyer’s Guide

Blueprint Racing
Stroker kit
BluePrint Racing stroker kits meet or exceed OEM tolerances and provide the base for a strong bottom end. These kits include billet race profile crankshafts, custom Wiseco pistons and race-profile connecting rods.
blueprintracing.com

Modp 1111 22+engine internals buyers guide+blueprint stroker kit Photo 23/30   |   Engine Internals - Buyer’s Guide

Darton Sleeves
VR38DETT engine block
Modular Integrated Deck (MID) sleeve kits are now available from Darton Sleeves for Nissan’s VR38DETT block. This kit will allow you to go from a standard bore of 95.5mm to a max bore of 100mm, handling any amount of boost and or high compression in your GT-R.
darton-international.com

Modp 1111 23+engine internals buyers guide+darton sleeves engine block Photo 24/30   |   Engine Internals - Buyer’s Guide

HKS
4B11 2.2-liter stroker kit
HKS’ 4B11 2.2-liter stroker kit is designed to increase engine displacement and incorporate technology that was developed in conjunction with the CZ200S time attack car. The EVO X 2.2-liter kit includes a forged full counter crankshaft, I-beam connecting rods and forged pistons.
hksusa.com

Modp 1111 24+engine internals buyers guide+hks stroker kit Photo 25/30   |   Engine Internals - Buyer’s Guide

COMP Cams
Performance camshafts
COMP Cams maximize horsepower and performance in everything from stock engines to big turbo and high-boost applications. Whether you need stronger mid-rpm or maximum upper-rpm horsepower, these cams are designed for serious street and race applications. COMP offers camshafts for many applications including Honda, Mitsubishi, Toyota, Chevrolet, Ford, Nissan and Subaru.
bwrusa.com

Modp 1111 25+engine internals buyers guide+comp cams Photo 26/30   |   Engine Internals - Buyer’s Guide

Toda Power
Valvesprings
Progressive-pitch coil springs are used to prevent valvespring surging and improve the natural frequency. High-strength Si-Cr steel and ultra-high-strength Si-Cr steels are also used.
todaracingusa.com

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Toda Power
Camshafts
TODA camshafts are produced in Japan on the highest quality billet camshaft cores available. A variety of profiles are available, from mild to full race, and VTEC Killer Camshafts are also available for select Honda engines.
todaracingusa.com

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Wiseco
Forged pistons
Wiseco Performance Products is now offering its Max 23-degree series of racing pistons. This is the first series to use 2.25-inch pin forging and technology. Narrow spacing between the bosses increases the bearing area and reduces unsupported crown area, reducing ring groove distortion. Kits are available in multiple compression heights and compression ratios to fit your motor.
wiseco.com

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Tomei Powered
Performance camshafts
Performance camshafts from Tomei have been designed and tested to be used on the stock cylinder head and ECU applications. These camshafts have been designed for entry-level to mid-range tuning; they’re for daily driven street use vehicles as well as light track use.
tomeiusa.com

Modp 1111 29+engine internals buyers guide+tomei powered cams Photo 30/30   |   Engine Internals - Buyer’s Guide

Sources

Wiseco Performance Products
Mentor, OH 44060
440-951-6600
www.wiseco.com
Skunk2 Racing
Norco, CA 92860
951-808-9888
http://www.skunk2.com
Jim Wolf Technology
El Cajon, CA 92020
619-442-0680
http://www.jimwolftechnology.com
Comp Cams
Memphis, TN 38118
800-999-0853
http://www.compcams.com
Blox Racing
Fremont, CA 94538
510-440-1605
http://www.bloxracing.com
Tomei Powered USA, Inc.
Lake Forest, CA 92630
949-855-6577
http://www.tomeiusa.com
Buddy Club USA
Ontario, CA 91761
909-923-9188
http://www.buddyclub.us
Cosworth
Torrance, CA 90505
310-534-1390
www.cosworth.com
Brian Crower
El Cajon, CA 92020
619-749-9018
http://www.briancrower.com
BluePrint Racing
South El Monte, CA 91733
626-575-8866
http://www.blueprintracing.com
Inline Four
Garden Grove, CA 92841
714-903-1898
http://www.inlinefour.com
Supertech Performance
San Jose, CA 95136
408-448-2001
http://www.supertechperformance.com
HKS USA
Los Angeles, CA 90061
310-491-3300
http://www.hksusa.com
Ross Pistons
El Segundo, CA 90245
310-536-0100
www.rosspistons.com
Toda Racing
Irvine, CA 92618
949-336-6299
http://www.todaracingusa.com
JE Pistons
Huntington Beach, CA 92649
714-898-9763
www.jepistons.com
Darton Sleeves
Carlsbad, CA 92009
800-713-2786
www.dartonsleeves.com
Probe Industries
Torrance, CA 90505
310-784-2977
www.probeindustries.com
Carrillo
Mooresville, NC 28117
704-664-2515
http://www.cp-carrillo.com
Motovicity
248-307-1570
http://www.motovicity.com
Modern Automotive Performance
http://www.maperformance.com
Blackworks Racing
http://www.bwusa.com

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