Opposite to a Bogus assumption which the 4A-G is a duplicate with the Cosworth BDA, (coincidental ‘A’ collection designation on each engines). There are actually tiny, if any, interchangeable sections between The 2 engines, beyond it's possible some nuts and bolts. The Cosworth 4-valve style and design begun lifestyle using https://federicop712edd4.signalwiki.com/user