NOT KNOWN FACTS ABOUT TOYOTA 4AGE BLACKTOP ENGINE FOR SALE

Inspite of Other folks assert of a 20HP or maybe more increase- on modified heads by itself, this is simply impossible without having camshaft or pistons improved. Toyota has casted and machined all their 4 valve heads to very shut and precise tolerances for Avenue (and rally) use.The 5 valve head is Toyota's reward into the 4AG following the 4AGZE