440 Source Aluminum Heads

dad has the cnc ported version of them on his motor, if you intend to go with a solid cam change the springs!!! if you get 1.6 rockers the heads required a good bit of clearancing for the pushrods. and if you get a set of their rockers and have 1.55 diameter springs check retainer to rocker clearance, had to do some grinding there too!

for the positives they run great and 440 source had awesome customer service when a valve spring broke