{"product_id":"speedmaster-pce281-2007-aluminum-complete-cylinder-heads-chevy-small-block-gen-i","title":"Aluminum Complete Cylinder Heads M684147","description":"Speedmaster PCE281-2007: Cylinder Heads, As-Cast, Assembled, Aluminum, 64cc Chamber, 205cc Intake Runner, for Hydraulic Flat-tappet Camshaft, Chevy, 302, 327, 350, Pair - Speedmaster as-cast cylinder heads offer improved power throughout the entire rpm range for greater throttle response and top-end performance. Speedmaster as-cast cylinder heads are designed for entry-level street\/strip applications and are available for popular V8 engines (bare or assembled). Order the model recommended for fitment with your year\/make and engine size.Features and benefits Include:. Bronze valve guides. CNC-finished faces and bolt holes for extreme accuracy. T6 heat-treated gravity die-cast construction (alloy heads only). OEM accessory bolt patterns. Plenty of material for upgrading to larger horsepower applications. Machined for screw-in studs and guide plates. Flame-hardened valve seats for use with all fuel","brand":"My Store","offers":[{"title":"Default Title","offer_id":46450076418105,"sku":"P353529059772341513","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0813\/8211\/3337\/files\/2556160015df482b44312a02a9f039b118332315af7637f14c5978705e9925ea.jpg?v=1788590673","url":"https:\/\/vanina.shop\/products\/speedmaster-pce281-2007-aluminum-complete-cylinder-heads-chevy-small-block-gen-i","provider":"My Store","version":"1.0","type":"link"}