409 General Information

 

 

 

Bore 4.3125 Inches
Stroke 3.5 Inches
Firing Order 1-8-4-3-6-5-7-2
Head Bolts 7/16" - 14 X 3 7/16", 16 short
Head Bolts 7/16" - 14 X 4 3/16", 20 long

 

Push Rod
Exhaust Long 9.140
Intake Short 8.772
 

Fuel Pump Push Rod 5.750
 

Spark plugs

AC44 Standard
AC45 Hotter
AC43 Colder


Spark Plug Gap .035

Crank Shaft Mains 2.4977
Crank Shaft Rods 2.200
Connecting Rod Length 6.000
Connecting Rod Weight 25.025 oz.
 

All 409 Crankshafts are forged, has a bell shape flywheel flange
Engine weight Approx. 650lbs
Rocker Arm ratio: 1.75:1
Dipstick is on passenger side
409's were assembled in Tonawanda
All 409's are internally balanced

 

 

 

 

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Order Desk: 507-233-1958
Phone: 507-354-1958

Fax: 800-64-SS-FAX
Email: Showcars@newulmtel.net

 

*Please note that all prices are subject to change.