the latest adventure.

[66StangGuy]

i am wrighting this because i am trying to help out anyone who changes the heads on their mustang.

so here it began. at work fixing a mt street tire for a blown 5.0. when the guy says hey is that your car. and he points at my mustang. long story short he tells me that he has heads for my car he is trying to sell. so i got them for 350. they are world castings winsor sr's 200cc intake runners 2.02 intake 1.60 exhaust. they came with screw in studs and erson cams 1.6 roller rockers. so on a day off i tear it apart and install the heads. adjust the rockers and off i went. took it down the street and just bairly taped the pedal and my ride scared the livin stuff out of me. she went sideways and just threw the rpms to 5500 in a flash. my old heads must have really ben restrivtive. the only thing holding my motor back now was cam and the intake ports on my performer are a little small compared to the heads. anyway driving my car to work. about 3 blocks from work at a red light i hear the rockers starting to tap. then suddenly the car starts to shake and the motor sound like it dropped a cylinder. so i pull over and check it out. i had my tools with me still since i was still adjusting the rockers. so i pull the valve cover off the pasenger side and find that 2 rockers had completely come off. first and third cylinder. so i was trying to put them back on when i noticed the pushrod for the first cylinder was not seating right. the pushrod was not bent. so with no other tools or ideas i had my baby towed by AAA to my work (Pepboys) later found out that because the rocker came off the cam pushed the lifter out of the block and was just sitting up top. so pulled the intake and fixed it. it just slipped back in. put it all back together and put locktite on the adjusters for the rockers. now she runs great. now i just have to find the sweet spot in the timing. and jet the carb.


here are a few questions that are pondering me.

the heads i took off my car are 69 302's stamped with B in the center. (for sale by the way)

are they boss 302's? from what i know a boss 302 is a 302 block with 351 heads. right??

the valves were white and my plugs look new.
am i running lean?
i always thought i was running rich.

also noticed on my pistons that right were the spark plug sits above the piston there is a little discoloration. what would cause this? bad timing curve or what?

thanks for reading this long thing and i hope that anyone who puts on new heads remembers to use locktite on the rocker adjusters. dont do what i did. thanks for any replys to my questions.