Quote:
Originally Posted by swammi
hey guys and gals i have a a6l computer and wonder how decent it is copared to a a9l also anyone know the differences between lightning 351 gt40 heads and regular gt40 heads. any info would be great and will be thankful!  |
I've never heard of an A6L computer, did it come out of a Lightning? On the heads, they have different casting numbers, but are all pretty much the same. They can be anywhere from 60-64 cc's on the chambers, but the only way to know, is to get them cc'ed, or do it yourself. I know the Cobra GT40's were milled by the factory. The Lightning heads will definitely have the 1/2" head bolt holes, as do some Cobra and Explorer versions. If they're going on a 302 block, you'll either have to get the head bolt bushing set to work with the 7/16" bolts, OR, go pick up a set of the torque to yield head bolts for a 5.0 Explorer ($15 per head), since they have the integrated washer on the bolt head to compensate for the 1/2" bolt hole.