Pontiac 400, V-8

400

Part
Number
346
Compression Ratios

71-9.6
87-8.4
96-7.8
111-7.1

Quick Reference CR

Enter your Cylinder Head Volume for your approx. Compression Ratio.


This ratio is calculated using a .030 oversize only.



D-cup
Effective Head Volume: 17cc
Ring Packs

2-5/64
1-3/16

Pin Number

980x300K


Lock Ring

PRH107-3



SPECIFICATIONS
Bore:4.12 Rod Length:6.63 Pin Diameter:0.9805
Stroke:3.750 Comp. Ht:1.72 Sizes:Std
030
.040
.060
Minimum Clearance: Click Here To View
SPECIAL CLEARANCE REQUIREMENTS 		 Crank-to-Deck Clearance:10.25 Weight
Piston / Pin:		569 / 147
NOTES
Centered pin. Desinged for use with 14 and 20 degree heads. Piston is .025 below factory deck. Ring set pt. no. 4120AM8. Kit no. KB346KTM.


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