How to Build a Competitive Kart Racing Engine (Stock Appearing)

How to build a stock appearing racing engine from Harbor Freight. All the tools and parts you'll need to take a non-hemi 212 Predator engine from 6.5 HP up to 18 HP.

This is my 2nd channel. For all the good content go here: https://www.youtube.com/makesomething

**Engine Parts (Total $1184.16 before taxes and shipping)**(Affiliate Links)
Non-Hemi 212 Predator: http://bit.ly/38wk5sl
28.5 Intake Valve: https://www.arcracing.com/dj-1122-stainless-steel-oversize-valve-28-5mm/
25 Exhaust Valve: https://www.arcracing.com/dj-1121-stainless-steel-valve-25mm/
1:3 Rockers: https://www.arcracing.com/97-113bv-1-3-gx200-clone-black-venom-roller-rocker-set/
Retainers: https://www.arcracing.com/dj-1046t-titanium-retainer-kit-36lb/
Lash Caps: https://www.arcracing.com/dj-1051-high-performance-lash-cap/
36# Springs: http://bit.ly/39cslww
Cam: https://www.arcracing.com/dj-1104p-predator-f-275-cam/
Flat Top Piston: https://www.arcracing.com/dj-1285ph-std-bore-hemi-predator-flat-top-piston-kit/
Connecting Rod: https://www.arcracing.com/6252-arc-billet-rod-040-hf-predator-3-348-x-1-191-x-709/
Long Carburetor Stud: https://www.arcracing.com/dj-1345-bsp-carb-stud/
Billet Flywheel: https://bit.ly/3GCpprK
Gasket Set: http://bit.ly/3ovVdGA
Push Rods 5.340: https://www.nrracing.com/product-p/cmpr-55.htm
Top Plate: http://bit.ly/3q7Tqbf
Fuel Pump: https://www.arcracing.com/fpc1-1-fuel-pump-walbro-new-style/
Air Filter: http://bit.ly/3nAnk6a
Air Filter Adapter: https://www.bmikarts.com/Airspeed-II-Clone-Air-Filter-Adapter-Bracket--2nd-Generation_p_4934.html
Spark Plug: https://amzn.to/3gPgLvw
Chain Guard: http://bit.ly/2K1rRkq
Pre-filter: http://bit.ly/2XvFBXI
Header: http://bit.ly/38udRcs
Fuel Line: https://amzn.to/34TICYS
Carb: https://www.doverpoweronlinestore.com/catalog/item/8223863/8971820.htm
Valve Spacer: https://bit.ly/3hZk9Uo
2° advance key: https://www.arcracing.com/dj-2172-x-offset-key-for-clone-gx200-390/

**Tools Used**(Affiliate Links)
Plastigauge: https://amzn.to/3KQHBjP
Flex-Hone: https://amzn.to/3s8Ihdw
Piston Ring Installer: https://amzn.to/3Fb641P
Assembly Lube: https://amzn.to/3kABlBL
Ice Pick: https://imakeny.com/products/diresta-ice-pick
Piston Ring Compressor 70 mm: https://bit.ly/3s708Sk
Torque Wrench: https://www.harborfreight.com/38-in-drive-digital-torque-wrench-64915.html
Cut-up Side Cover: https://www.ebay.com/itm/324345592716?hash=item4b8480fb8c:g:tdkAAOSwIgNiZE16
Dye Grinder: https://amzn.to/3LDPGJP
Crankshaft Stop: https://www.ombwarehouse.com/3-4-crankshaft-holder-tool.html
Valve Grinding Compound: https://amzn.to/3y7SXNk
5.5 mm Reamer: http://www.nrracing.com/product-p/8803a416.htm
Valve Guide Hone: http://www.nrracing.com/product-p/bc64m240.htm
Valve Guide Remover: http://www.nrracing.com/product-p/07942-8920000.htm
Valve Seat Pocket Cutter: Adjustable Range: 1 1/8"- 1 1/4" for 3/8" pilot. (Ebay)
3-angle Valve Job Tool: http://www.nrracing.com/product-p/neway2003a.htm
Spring Pocket Cutting Tool: http://www.nrracing.com/product-p/springseatcutter.htm
Valve Lapper: http://www.nrracing.com/product-p/pt-w80570.htm
Valve Spring Tool (newer version): http://www.nrracing.com/product-p/vspgcompress.htm
Kart Oil: https://www.arcracing.com/9806-lucas-4cycle-karting-oil-gal/
Zink Additive for Break In: https://amzn.to/3F96lCi

**Stock Appearing Rules**
• Stock appearing Clone/Predator that must be pull started with a standard rope. No external compression release.
• No strokers. Must be stock stroke.
• No external billet parts. No billet side covers.
• No external mods.
• Must be a Clone or 212 Predator block. No Honda, Tillotson or other blocks.
• No head studs, no side cover studs. Must use bolts.
• Maximum 2.815 bore.
• Carb must be Predator/small block/Clone carb.
• Carb cannot have external mods including welding or epoxy on the outside to allow bigger bore.
• Choke can be removed and sealed
• No fuel additives. (methanol and gasoline allowed)
• No block bracing or head girdles.
• No aftermarket carb spacer between carb and head and cannot be vented or pulsed into carb or intake anywhere (valve cover spacer allowed).

This is the league I race in: https://www.idiotsracing.com/

Here is where I learned how to build racing engines
HP Academy: https://www.hpacademy.com/courses/learn-how-to-build-engines/
Book: https://www.ebay.com/itm/262152692345
ARC: https://bit.ly/3F7cIWS

0:00 Intro
0:32 Predator 212 Motor
1:03 Engine Teardown
3:38 Connecting Rod
4:10 Piston
4:35 Crankshaft Clearance
5:38 Cylinder Hone
6:08 Piston Rings
8:32 Crankshaft-Piston Assembly
9:17 Camshaft
10:50 Block Clearance
13:15 Flywheel Assembly
15:08 Ignition Timing
16:56 Ignition Coil
17:27 Cylinder Head Disassembly
18:11 Valve Seat Removal
19:05 Valve Guide Honing
20:38 Cutting Valve Seat
21:24 3-angle Valve Job
22:19 Porting and Polishing
24:16 Head Milling
25:00 Valve Grinding
25:35 Spring Pockets
27:04 Valve Train Assembly
30:22 Roller Rockers
32:26 Finding Top Dead Center
34:43 Set Lash
36:26 Carburetor Assembly
38:25 Top Plate