CLASS RACER FORUM - View Single Post - Chevrolet 1974-1975 400 cu in engine

Rick Shirey · 08-12-2011, 10:40 AM

Does anyone know if out of the head castings that are legal to be used in this combo if one is more desireable than the others ? Going by the classification guide the following are the ones you have to choose from: 993,881,882,997 and 493. And how do I find out what transmissions I can use in the GT classes with this engine combo ?

08-12-2011, 10:40 AM	#1
Rick Shirey Junior Member Join Date: Apr 2003 Posts: 53 Likes: 0 Liked 0 Times in 0 Posts	Chevrolet 1974-1975 400 cu in engine Does anyone know if out of the head castings that are legal to be used in this combo if one is more desireable than the others ? Going by the classification guide the following are the ones you have to choose from: 993,881,882,997 and 493. And how do I find out what transmissions I can use in the GT classes with this engine combo ?