{"product_id":"proflow-cylinder-heads-airmax-170-aluminium-assembled-60cc-chamber-170cc-intake-runner-sb-for-ford-289-302-351w-pair","title":"Proflow Cylinder Heads, AirMax 170, Aluminium, Assembled 60cc Chamber, 170cc Intake Runner, SB For Ford 289, 302, 351W, Pair","description":"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. They have 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. Note: We suggest using Proflow Head Bolt Stepped washers part number PFEAHF-HBW  Proflow head bolt insert washers are designed to be used on Ford Windsor cylinder heads in applications where you have 7\/16\" head bolts being used in 1\/2\" bolt hole Stops head bolt hole distorting on aluminium heads when using 7\/16 bolts on 289 \/ 302 standard Windsor block       SPECIFICATIONS    Combustion Chamber   60 cc   Intake Port Volume   170 cc   Intake Port Dimensions   2.00” (H) x 1.18” (W)   Exhaust Port Volume   66 cc   Exhaust Port Dimensions   1.32” (H) x 1.27” (W)   Spark Plug Location   Angled   Intake Valve Diameter   2.020”   Exhaust Valve Diameter   1.600”   Valve Stem Diameter   11\/32”   Valve Spring Pocket ID   1.50”   Valve Guide OD   0.530” (0.560” at base)   Maximum Valve Lift   0.600”   Rocker Stud Thread Size   7\/16”-14   Valve Angle   20°     Deck Thickness   0.625”   Installed Spring Height   1.80” @ 125lbs      ","brand":"Proflow","offers":[{"title":"Default Title","offer_id":42176454950957,"sku":"PFEAHF17060","price":1783.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/2987\/5757\/products\/PFEAHF17060.jpg?v=1709682730","url":"https:\/\/propartswarehouse.com.au\/products\/proflow-cylinder-heads-airmax-170-aluminium-assembled-60cc-chamber-170cc-intake-runner-sb-for-ford-289-302-351w-pair","provider":"Pro Parts Warehouse","version":"1.0","type":"link"}