Ross Big Block Chevy Moderate Compression Dome Pistons

BBC dome top pistons from ROSS Racing Pistons on this page provide compression ratios from 10-1 to 13.5-1 depending on the bore, stroke and cylinder heads used in the engine.

Ross forged Big Block Chevy pistons are the preferred choice of many high performance engine builders. Ross forged pistons incorporate unique design features to provide high strength and take advantage of precision machining and premium materials to build a forged piston you can depend on. Ross pistons improve torque, horsepower, efficiency and reliability.

We offer discounted pricing, tech help if you need assistance, and fast shipping on the entire Ross Racing Pistons product line.Buy today to start enjoying all the performance benefits a set of top quality Ross Racing Pistons provide.

CHEVROLET BIG BLOCK MODERATE COMPRESSION PISTONS BLOCK HEIGHT 9.800 COMPRESSION RATIO Based on .050 piston to head clearance (deck and gasket combined) FORCED INDUCTION No NITROUS Yes up to 250hp shot Ring Grooves 1/16 1/16 3/16 APPLICATIONS Street, Drag Racing, Marine (optional taper bore pins recommended for high horsepower applications) WHAT’S INCLUDED 8 forged pistons, 8 Wrist Pins ( .990 5115 Series steel straight wall) and 32 pin retention locks PISTON RINGS Are sold separately Piston rings listed are plasma moly, file fit with standard tension oil rings and the part number and price shown is for a complete set to do 8 cylinders If you do not see the compression you want, we have many more BBC pistons available here: Ross Racing Pistons Catalog
Bore	Stroke	Rod Length	C.H.	Dome cc	Dome Ht	Compression Ratio with Head cc of:			Weight	Piston Rings	Piston Set
						109	118	124
4.280	3.76	6.135	1.768	51	0.7	12.3	12	11.2	648	RS-9745-35 $199.95 $198.95	83762 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.280	4.00	6.135	1.648	36	0.7	11.8	10.8	10.3	615		83064 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.280	4.00	6.135	1.648	38.7	0.5	12.1	11	10.4	607		83063 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.310	4.25	6.385	1.275	25	0.235	11.4	10.5	10	587	RS-9745-65 $199.95 $198.95	86069*^ $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.320	4.25	6.385	1.275	24.7	0.225	11.4	10.5	10	589	RS-9798-05 $219.95 $218.85	86070*^ $1155.00 $1039.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.500	4.25	6.385	1.275	16.6	0.145	11.4	10.5	10	636	RS-10451-05 $269.95 $268.60	86071*^ $1155.00 $1039.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.530	4.25	6.385	1.275	15.3	0.135	11.3	10.5	10	647	RS-10451-35 $269.95 $268.60	86072*^ $1155.00 $1039.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.310	3.76	6.135	1.768	51	0.7	13.5	12	11.3	661	RS-9745-65 $199.95 $198.95	86762 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.310	4.00	6.135	1.648	36	0.7	12	11	10.4	625		86064 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.310	4.00	6.135	1.648	38	0.5	12.2	11.1	10.6	603		86063 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.320	4.00	6.135	1.648	36	0.7	12	11	10.4	628	RS-9798-05 $219.95 $218.85	99556 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.350	4.00	6.135	1.648	36	0.7	12.1	11.1	10.5	630	RS-9798-35 $219.95 $218.85	99557 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.375	3.76	6.135	1.768	36	0.7	11.6	10.6	10	685	RS-9799-05 $219.95 $218.85	88764 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
4.375	4.00	6.135	1.648	36	0.53	12.2	11.2	10.6	725		88065 $1125.00 $1012.50  + DISCOUNTED SHIPPING! Shipping in the USA for this item is only $34.95 when you spend $600.00 or more!
* after the piston part number indicates that oil ring support rails are included in the piston set. ^ after the piston set part number indicates a heavy NOS design piston.

Ross Dome Top BBC Piston Standard Features

ROSS pistons feature forced pin oilers when applicable, anti detonation grooves, lock removal grooves and come complete with wrist pin retention lock rings. The pistons are pin fit and balanced to plus or minus 2.5 grams throughout the set. Intake and, or exhaust valve pockets are radius machined and designed to handle most common performance camshaft applications. The precision skirt design allows the pistons to work properly under intense combustion heat and tremendous side loads without scuffing or splitting cylinder walls.

Custom Chevrolet Big Block Dome Pistons

If you do not see a set of pistons here that meet your needs, we sell pistons from many other manufacturers and we also offer custom forged pistons for most any engine project. Please contact us if you would like help in locating a shelf stocking set of pistons meeting our requirements, or to discuss a set of custom pistons and we will be happy to work with you to make sure you get exactly the pistons you need for your engine.