Afr 165

Just got my AFR heads, I think iam just going to stare at them for awhile
they look so nice. Iam going to start taring my motor apart and getting all
the gaskets. They are the 165 pedestal mount iam not sure if i should use
my stock rockers or go with 1.6 roller rockers. I have a 87 5.0 has any
one done this swap and have any suggestions, i can use any imput on
his. Iam going to be using Fel Pro gaskets. Thanks, Aggie

Might as well do roller rockers while your at it.

the stock rocker is a 1.6 but going with a roller rocker 1.6 will free up some hp.

Well today i installed my AFR heads, everything went good and than my problems started. I started to adjust my rockers, brought # 1 to TDC on
compresson stroke and timing pointer at 0 . I put my finger over # 1 spark
plug to make sure i was on the compresson and air blew out so i started
going down the firing order and turning 90 degress each time. I did this
at 3 times just to make sure they were adjusted right. When i did it the
3rd time i just wanted to make sure i was still on the compresson stroke
when i put my finger in the # 1 hole there was no longer any air pressure.
I tried this several times there just isnt any compresson on # 1 clyinder
all other cylinders are ok. Before i put the AFR heads on the car was
running strong, no smoke no noise no burning oil, even the plugs looked
brand new. Any thought on what might of happened. Theres no suction
or presure on # 1. Thanks, Aggie.

Just to rule out, the piston crosses tdc 2 times. Not sure how ou are rotating the engine.
Also lots of cams intake valve timing events start to occur before tdc, so if you adjusted at tdc you may be not have them adjusted correctly

There are many ways to figure out when the lifters are in the right location. I never liked the finger over the hole method. If you don't turn it fast enough, or your not sealed well, you will never know it, and adjust incorrectly.

The method I like, is rotate the engine till the exhaust valve is full open on #1, then adjust the intake valve on #1. Then rotate the engine till the intake on #1 is full open then adjust the exhaust on #1.

Repeat for all cylinders.

This way, it is impossible to make a mistake, or lose track of which ones you did, vs which ones you did not. One at a time.

Take your time, there is no rush on this.

Also you don't mention your cam at all. You should post this, jkust to make sure you have the right cam for your combo.

It is also important you have the right length pushrods for your set-up. Wrong length and your asking for trouble that may not show up for 1000+ miles.

Best.