I only had 1 engine built for me as it was a ford and I don't know squat about them (It's for the Wife's race car). Guy charged me $500 to assemble + $100 to file fit the rings + $60 to install cam bearings. Gave me a break on the dyno (Charged $400) as I only wanted the cam broken in and did a few pulls to check the Air/Fuel ratio. I have $7800 with dyno time, machine work and all parts in the engine intake to oil pan with EVERYTHING being new, except the water pump. That even included a set of AFR 185 heads ($1650). Motor was a 351W stroked to a 408. I did shop around for deals and got 95% of the parts on my own to try and save a few more bucks.