SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
305 SMALL BLOCK 23º FLAT TOP

305 flat tops are ideal for 305 Sprinters as well as street/strip applications. Features 1/16, 1/16, 3/16 CNC precision machined ring grooves.

Includes:
Pin #927-2500-15-51S (118g)
Double spiro locks #927-042-CS
Accumulator Groove
Contact Reduction Grooves

305 SERIES FLAT TOP
Std Bore: 3.736
Ring package designed for: 1/16, 1/16, 3/16 Rings
 Tech and Installation Tips
 Valve Relief Diagram
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
52cc 58cc 64cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
170771 310 3.766 3.480 5.700 9.000 1.560 10.8 10.0 9.3 -5.0 412 Flat Top 0.030
170772 315 3.796 3.480 5.700 9.000 1.560 10.9 10.1 9.4 -5.0 418 Flat Top 0.060

APBA - 305 APBA FLAT TOP & DISH SERIES
Std Bore: 3.736
Ring package designed for: 5/64, 5/64, 3/16 Rings
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
52cc 58cc 64cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
174004* 310 3.766 3.480 5.700 9.000 1.560 10.8 10.0 9.3 -5.0 504 M, Flat Top 0.030
174002* 310 3.766 3.480 5.700 9.000 1.560 9.8 9.2 8.5 -12.0 472 Dish 0.030


- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.

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