GX160 & GX200 PERFORMANCE PARTS

GX340 & GX390 PERFORMANCE PARTS

ENGINES

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ENGINES
Stage 1 Engine
Code: Stage 1 Engine
Price: $425.00
Quantity in Basket: none
Stage 1 engine:
  • throttle linkage kit with cable
  • high flow air filter with adapter
  • #90 main jet
  • 18lb valve springs
  • breather filter
  • chain guard
  • choice of header
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil before running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Stage 2 Engine
Code: Stage 2 Engine
Price: $545.00
Quantity in Basket: none
Stage 2 engine:
  • high flow air filter with adapter
  • #92 main jet
  • 18lb valve springs
  • breather filter
  • billet connecting rod
  • aluminum flywheel w/4* advance
  • choice of header
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil before running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Stage 3 Engine
Code: Stage 3 Engine
Price: $695.00
Quantity in Basket: none
Stage 3 engine:
  • high flow air filter with adapter
  • #92 main jet
  • 18lb valve springs
  • breather filter
  • billet connecting rod
  • aluminum flywheel w/4* advance
  • 14cc cylinder head
  • chrome moly pushrods
  • flat top piston
  • choice of camshaft
  • choice of header
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Stage 4 Engine
Code: Stage 4 Engine
Price: $910.00
Quantity in Basket: none
Stage 4 engine:
  • 22mm Mikuni carburetor
  • 125 main jet
  • 12.5 pilot jet
  • UNI filter
  • breather filter
  • 14cc cylinder head
  • 26lb valve springs
  • stainless steel valves (stock size)
  • lash caps
  • retainer/keeper set
  • chrome moly pushrods
  • 1.2 ratio rockers (stamped steel)
  • flat top piston
  • 275 camshaft
  • billet connecting rod
  • aluminum flywheel w/4* advance
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil before running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Stage 5 Engine
Code: Stage 5 Engine
Price: $1,200.00
Quantity in Basket: none
Stage 5 engine:
  • 22mm Mikuni carburetor
  • 125 main jet
  • 12.5 pilot jet
  • UNI filter
  • breather filter
  • ported/milled small chamber cylinder head (choice of 14cc or 18cc)
  • 26lb valve springs
  • stainless steel valves (stock size)
  • lash caps
  • retainer/keeper set
  • chrome moly pushrods
  • 1.3 ratio roller rockers
  • flat top piston
  • 275 camshaft
  • billet long rod (.020")
  • aluminum flywheel w/4* advance
  • bolt/stud kit
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil before running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Stage 6 Engine
Code: Stage 6 Engine
Price: $1,400.00
Quantity in Basket: none
Stage 6 engine:
  • 22mm Mikuni carburetor
  • 130 main jet
  • 12.5 pilot jet
  • UNI filter
  • breather filter
  • ported/milled Big valve cylinder head (choice of 14cc or 18cc)
  • dual valve springs
  • lash caps
  • retainer/keeper set
  • chrome moly pushrods
  • 1.3 ratio roller rockers
  • valve cover spacer
  • flat top piston
  • choice of camshaft
  • billet long rod (.020")
  • aluminum flywheel
  • bolt/stud kit
All our engines have the govenor and low oil sensor removed. Some parts may not be assembled on the engine for shipping purposes. You need to add oil before running the engine. Contact us if you need break in instructions. No warranties or returns on racing engines. Stage 2 engine pictured with candy cane header.

Big Block Engine Stage I
Code: BBENGINE
Price: $725.00
Quantity in Basket: none
13hp engine with the following modifications: govenor removal, Robertson straight header, UNI filter with adapter & 105 main jet. (Engine pictured is stage III.)

Big Block Engine Stage II
Code: BBEngineII
Price: $1,158.00
Quantity in Basket: none
Same as the stage I engine with these additional modifications: billet rod, billet flywheel, bored 390 carb, insulator block with vacuum takeoff & 32lb valve springs. Solid motor with great torque. (Engine pictured is stage III)

Big Block Engine Stage III
Code: BBEngineIII
Price: $2,050.00
Quantity in Basket: none
This powerful big block engine has the following modifications: ported/milled cylinder head, stainless steel valves (stock size), retainer/keeper set, lash caps, chrome moly pushrods, 1.3 ratio roller rocker arms, valve cover spacer, 55lb valve springs, billet rod, agk racing camshaft, big Mikuni carb, manifold with pulse fitting, UNI air filter, billet flywheel & supersnake header. These motors produce awesome power!

  Custom Built 6.5hp Engine
Code: ENGINE
Price: $0.00
Quantity in Basket: none
We custom build engines to our customer's specs. Just tell us what you want and we'll build it. Initiate your engine build by sending us an email requesting an engine quote. We will start a build sheet and work out all the details with you. When you are satisfied with the final parts list for your engine we'll start building. Engine dyno services are also available through AGK. Setup and the first dyno run is $130. After setup and the first run we charge $65 for every half hour. Our dyno team consist of three people with many years of professional engine building experience.