Cylinder Head - Pro 1 CNC - Assembled - 2.300 / 1.880 in Valves - 355 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Each Brand-DART MPN 19574136 . **NOTE: FLOW CHART INT. EXH. .200 177 136 .300 251 178 .400 310 235 .500 360 265 .600 399 282 .700 423 296 .800 426 303 2.300 INT. 1.88 EXH. USE DRT64110001 STUD GIRDLE ONLY 1.625 Dual Springs 275Lbs @ 2.00 Truck Freight NO
Proposition 65: These products may contain a chemical known to the state of California to cause cancer and birth defects or other reproductive harm. For more details visit https://www.p65warnings.ca.gov/