{"product_id":"9781903706763","title":"How to Build, Modify \u0026 Power Tune Cylinder Heads by Peter Burgess","description":"The complete practical guide to successfully modifying classic\/retro 2-valve per combustion chamber cylinder heads for maximum power, economy and reliability._x000B_ Understandable language and step-by-step instruction. Topics include horsepower and torque; equipment and tools; airflow, building a flow bench; porting; valves; valve seats and inserts; valve guides; valve springs; unleaded fuel conversion.   Written by two expert engineers, who share their extensive knowledge and experience to explain everything you need to know about building, modifying and power tuning cylinder heads.\u003cbr\u003eBinding: Paperback \/ softback","brand":"Gardners","offers":[{"title":"Default Title","offer_id":56313107939701,"sku":"9781903706763","price":25.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/7193\/3106\/files\/9781903706763.jpg?v=1762825424","url":"https:\/\/backstory.london\/products\/9781903706763","provider":"Backstory","version":"1.0","type":"link"}