Project EFI Stroker

An Article by Ken Mattice
May, 2001

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Page 6

Performance Table Comparisons

Builder	Nowak	Duttweiler	Change
Displacement	347 CID	364 CID
Block:	1970 2-Bolt 302	1999 4-Bolt R-302
Build Date	March, 1998	June, 2000
Maximum Horsepower	385 HP @ 5,800 RPM	458 HP @ 6,000 RPM	19.0%
Maximum Torque	402 Lb/Ft @ 4,200 RPM	428 Lb/Ft @ 4,800 RPM	6.5%
Compression Ratio	9.70 To 1	8.44 To 1	-13.0%
Torque at 3,000 RPM	352 @ 3000	383 @ 3,000	8.8%
Practical Redline	6,200 RPM	6,600 RPM	6.5%
Idle:	850 RPM	850 RPM
Idle Vacuum	16# Idle	12# Idle
Dyno:	Bechtel Engineering	Duttweiler Engineering
Bore:	4.035"	4.125"
Stroke:	3.400"	3.400"
Rod Length:	5.400"	5.400"

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The End

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