Features Getting Your Head Straight About Head Straightening Advertisement ByBrendan Baker on Oct 1, 2003 AdvertisementClick Here to Read MoreAdvertisement Along with new-style aluminum cylinder heads came a few inherent characteristics Advertisement In this article: America's Best Engine Shops: America’s Best Engine Shops 2020 America's Best Engine Shops: America’s Best Engine Shops 2020 Features: Engine of the Week November 2020 Recap Features: Diesel of the Week November 2020 Recap Advertisement VIDEOS Watch Engine Builder's latest discussions and explanations. SHOP Shop the latest Engine Builder merchandise. SUBSCRIBE Stay up to date by signing up for the Engine Builder newsletter.