ih8chevy

how hard is it to put on an aftermarket set of heads and what is notching ur pistons mean i have an 86 and have to do this or it wont work

Liquid_02

I would get somebody who knows what they're doing to do it, as no offence intended, you don't sound like you do, and you could REALLY screw something up easily by notching the pistons. Notching them basically is what it's called... you notch them... cut a little divet in them so they have a valve relief

ih8chevy

i could pull the heads off my self but i dont kno what notchin is so i will get someone who knos what they are doing to do that

ih8chevy

but thats all u cut a divet i m quite confused

88BlueGT

You dont have to notch your pistons with all heads... only some. Like AFR 185's, etc. and other larger heads.

Liquid_02

Yah that'd work. Basically it's cutting a slot in the top of the pistons so when they're at TDC and the valves are open, the pistons won't hit them. Just you have to be careful when notching as you can't have a sharp edge as it will create a hotspot on the piston and burn it out, as well as you have to get the notches in just the right place

Liquid_02

It's an 86, has flat-tops

ih8chevy

where can i get the info on the net to do this stuff

ih8chevy

b/c i m gtting the afr 165cc heads and i wont have too much more to spend and i was also wondering if i can keep them fuel injected or do i have to switch to carb cause i dont want to

Liquid_02

To do what? notch the pistons? I wouldn't suggest doing it yourself, but you can make friends with Google.ca

Here's a picture of a notched piston to show you what I'm talking about.



Yah, they can stay injected, they're made for the injected cars afterall, but I would suggest carb... you're going to have LOTS of computer problems with the old 86 SD system