Ford Big Block 385 Series
Race Series (Kaase)- Flat Top

• Designed to fit the M-6049-SCJ “Kaase” Aluminum cylinder head only!
• Can be used with small nitrous kits & blowers. 2618 alloy.
• Ratios figured for .005” deck@10.300”.
• Standard 1/16” x 1/16” x 3/16” ring package.
• Premium 8620 pins included.
• Gasket volume = 10.4cc’s.
• Top ring down = .285”.
• Valve relief depths = .190” intake and “zero” exhaust.
• Some items are non-stock parts, made to order as necessary. See the shopping cart for availability.

429-460 Street/Strip (Kaase) Flat Top
Part #	Bore	Stroke	Rod	C. D.	Wt	Pin	CC's	Comp Ratio			Purchase Online
								68cc	70cc	72cc
								13.1 13.1 13.2 13.3	12.7 12.8 12.8 13.0	12.5 12.6 12.6 12.7
40520 $660	4.390 4.400 4.420 4.440	4.150	6.800	1.420	575 582 588 594	.990	-3.25				Discounted Prices
40512 $660	4.390 4.400 4.420 4.440	4.300	6.800	1.345	562 568 577 584	.990	-3.25	13.5 13.6 13.6 13.7	13.2 13.3 13.3 13.4	12.9 13.0 13.0 13.1	Discounted Prices
40524* $689	4.390 4.400 4.420 4.440	4.500	6.800	1.245	556 561 569 577	.990	-3.25	14.1 14.1 14.2 14.3	13.8 13.8 13.9 14.0	13.5 13.5 13.6 13.7	Discounted Prices
40528 $689	4.390 4.400 4.420 4.440	4.500	6.700	1.345	562 568 577 584	.990	-3.25	14.1 14.1 14.2 14.3	13.8 13.8 13.9 14.0	13.5 13.5 13.6 13.7	Discounted Prices

429-460 Street/Strip (Kaase) Flat Top Replacement pistons that use stock rods. Build an economy stroker and save $$$!
Part #	Bore	Stroke	Rod	C. D.	Wt	Pin	CC's	Comp Ratio			Purchase Online
								68cc	70cc	72cc
								12.2 11.8 11.9 12.0	12.0 12.0 12.1 12.2	11.7 12.3 12.4 12.5
40501 $660	4.390 4.400 4.420 4.440	3.850	6.605	1.765	658 662 670 679	1.040	-3.25				Discounted Prices
40510 $660	4.390 4.400 4.420 4.440	4.300	6.605	1.540	-	1.040	-3.25	13.5 13.6 13.6 13.7	13.2 13.3 13.3 13.4	12.9 13.0 13.0 13.1	Discounted Prices