{"product_id":"proflow-cylinder-heads-supermax-225-assembled-aluminum-sb-ford-302-351-cleveland-3v-60cc-chamber-225cc-intake-runner-630hp-pair","title":"Proflow Cylinder Heads SuperMax 225, Assembled, Aluminum, SB Ford 302,351 Cleveland 3V 60cc Chamber, 225cc Intake Runner, 630HP, Pair","description":"\u003cp\u003eProflow Cylinder Heads, SuperMax 225, SB Ford 302, 351C, Assembled Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of Engine, for SB \u0026amp; BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V \u0026amp; 3V \u0026amp; BB FE, and Chrysler SB \u0026amp; BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, High Performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod. Material:                                         356 Alloy, T6  Chamber Volume:                           60cc Complete Assembly options available in all chamber sizes Intake Runner Volume:                  231CC Intake Port location                        raised .125” 3V design  Minimum Cross Section:               2.53 square inches MCSA  Exhaust Runner Volume:             125cc - high velocity Exhaust Port Location                 Raised .080” (near stock location)  Valve sizes                                  Intake 2.10” (45 degree seat, custom 5 angles)                                                      Exhaust 1.650” (45 degree seat )  Valve Guide Angles:                   Canted Valve angles                                                     Intake 10 x 4 degrees                                                     Exhaust: 9.5 x 3.0 degrees  Valve Guides:                             Manganese Bronze .502” x 11\/32” stems   Valve Seat Inserts:                     Intake: 2.250” x 1.880 x 3\/8 (Durabond 7000)                                                     Exhaust: 1.680” x 1.430” x 3\/8  Spark Plugs:                               relocated for efficient fast burn                                                     ¾ reach, 5\/8 hex, washer seat (NGKBCP7ES)  Spring Pads:                              1.570” od\/.560” id  Valve Spring Height:                  1.960” (with stock length valve)  Pushrods                                    5\/16” or 3\/8” (check required length) Rocker Arm Studs                      7\/16” unc Rocker Arm Type                        7\/16” stud mounted roller rockers (1.73 ratio) or Yella Terra Planuim #6321 OR T\u0026amp;D shaft rocker sysytems\u003c\/p\u003e","brand":"Proflow","offers":[{"title":"Default Title","offer_id":43167079301165,"sku":"PFEAHF22560-3V","price":2520.0,"currency_code":"AUD","in_stock":true}],"url":"https:\/\/propartswarehouse.com.au\/products\/proflow-cylinder-heads-supermax-225-assembled-aluminum-sb-ford-302-351-cleveland-3v-60cc-chamber-225cc-intake-runner-630hp-pair","provider":"Pro Parts Warehouse","version":"1.0","type":"link"}