The Most Complete Inventory of Valve Train Components
Welcome to Precision Engine Parts, The World's Largest Manufacturer of Bronze Valve Guides & Home of the "Snakeskin" High Performance Engine Valves.
In today's competitive engine rebuilding business you need an "edge", PEP components will provide that edge for you. PEP products that we manufacture here in Las Vegas, Nevada are to the highest standards, using state of the art manufacturing equipment and techniques.
Many of our products have become the industry standard for innovative design and exceptional quality. We are a manufacturer and importer of American, Import, Heavy Duty and Hi-Performance cylinder head components for worldwide applications.
We are able to offer these outstanding parts at a very competitive price. This plus our "same day" shipping policy will give your business the edge needed in today's business environment.
Welcome to the new PrecisionEngineParts.com
NEW 2012 Heavy Duty Catalog is now live.
Available in the DOWNLOAD section.
- See PRODUCTS for a list of parts we supply.
- See DOWNLOADS to download our latest catalogs.
- See ABOUT US to learn about the history of PEP.
- See CONTACT to see how you can obtain PEP parts.
Over 9000 line items....
We at Precision Engine Parts pride ourselves at having the most complete inventory of cylinder head components. From Valves to Springs, Guides to Seats, Pistons to Pushrods, Crankshafts to full Cylinder Heads...If it belongs in an engine, we have it.
Since we only sell Wholesale, we have distributors and suppliers across the nation that can supply the end-user with the parts they need. Ask your local machine shop or part supplier about our Premium PEP Products!
High Performance - OEM - Heavy Duty - Domestic - Import - Marine
- Valve Seats
Available in many different materials like Tungsten Carbide, Hi-Chrome, Hi-Nickel and Beryllium Copper.
Installed on the bottom of the cylinder heads, between the head and the bottom of the valve.
It protects the head from wear.
- Valve Guides
Available in both Cast-iron and Manganese Bronze.
Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat.
- Valves
Available in 21-4N and 20-2N stainless steel and standard and coated titanium.
Held in place by the Valve Spring Kit and Valve Guide, the Valves are used to open and close the intake and exhaust ports in the cylinder head.
- Valve Seals
Available in Teflon, Viton, Nylon, Poly, and Hat-style seals.
Installed on top of the Valve Stem, over the Valve Guide. Used to keep oil from leaking.
- Cylinder Heads
Available in Cast Iron and Aluminum.
Sitting above the cylinders of the engine block, the cylinder head houses the valves, guides, seats, and spring kits.
- Connecting Rods
Available in H-Beam and I-Beam Standard weight and I-Beam Ultra-Lite Weight.
5140 I-Beam Rods press fit and bushed for street preformance are also available.
Connecting the Piston to the Crankshaft, it allows the Piston to be moved in and out of the engine cylinder after each rotation of the Crankshaft.
- Roller Rockers
Available in Stainless Steel and aluminum. Standard and higher ratios in stock.
With help from the Pushrods, the Rocker arms push the valve down to allow air to enter and exit the combustion chamber.
- Pistons
We stock MAHLE pistons!
Attached to the Crankshaft with a Connecting Rod, the Piston is used to compress the air and fuel within the engine cylinder.
- Intake Manifolds
Available in Aluminum. Fuel injected and carbureted.
Supplies the air/fuel mixture to the cylinders.
- Crankshafts
Available in 4340, 5140, and cast steel.
Ford, Chevrolet, Chrysler and only!
The crankshafts are also available in various movements.
- Spring Kits
Includes Valve Springs, Retainers, Valve Locks.
LS1 Kits also include stem seals and spring seats.
Retainers available in titanium and chromemoly.
Our Valve Springs provide a wide range of seat pressures, open pressures, and installed heights.
- Pushrods
1010 heat-treated and Black-oxided for use with guide plates. Also available in 4130 Chromemoly tubing in .065 & .080 wall.
Adjustable Pushrod kits are available!
- Flexplates
SFI Certified Heavy Duty Performance Flexplates.
Attached to the end of the crankshaft.
- Timing Sets
Available in cast and steel gear sets.
Also in 3 keyway and 9 keyway for timing adjustments.
Extreme performance sets include torrington bearings.
Special sets available for line board engines.
Connected to the Crankshaft and Camshaft, its used to keep the Pistons and Valves in time with each other, to prevent them from hitting.
- Harmonic Balancers
Also available in stock replacement Steel and Liquid!
Ford, Chevy, and Chrysler only!
Attached to the front of the Crankshaft, it reduces the vibration that often causes crankshaft failure.
- Carburetor Spacer
Available in 4150 and 4500.
Aluminum and PVC material*.
Designed to insulate the carburetor from engine heat to keep the °incoming air and fuel cooler, and act as a tuning aid to produce more power.
*Operating temperature up to 200°
- King Engine Bearings
- Rocker Studs
- Lash Caps
- Guide Plates
- Head Bolt kits
- Stud Girdles
- Poly Locks
- ARP Bolts
- Main Caps
Stay up to date with the OFFICIAL PEP Catalogs!
No matter what you're working on, we've got the right part for you.
And to save you time and money, with our new PEP catalogs,
you will be supplied with all the info you need to make sure you get
the right parts for your job.
Add one of our many catalogs and flyers to your order today!
Click on image to expand!
PEP Heavy Duty 2012 Catalog.pdf
PEP Excel 2010 Catalog.xls
Serving you for over 35 years...
Precision Engine Parts is one of the largest and oldest manufactures of automotive High Performance and OEM parts. For over 35 years, we have supplied machine shops and engine builders worldwide.
A pioneer in the use of super-alloy materials, PEP has won many awards for quality control achievments in what is perhaps the most exciting industry in the world. That experience has prompted many racing teams to consult with our engineering staff in the use of super-alloy materials.
We are also proud of the fact that quality engine builders are proclaiming our products as the finest ever used. PEP is dedicated to provide our customers with quality Valve Guides and Valve Seats at the lowest prices possible.
PEP relocated to Las Vegas Nevada in 1994 and manufactures all bronze guides at this facility. This has enhanced our ability to produce custom parts as required by our customers, saving both time and money.
We now have the lowest prices on Crankshafts, Connecting Rods, SFI Flexplates, SFI Balancers, Roller Rockers, Performance Cylinder Heads, and related components.
WHOLE-SALE ONLY
Precision Engine Parts
7240 Placid St.
Las Vegas, NV 89119
Wholesale Only: 1-800-423-2202
Please include your account number or company information. We do not sell to individuals!
Copyright © 2011 Precision Engine Parts