[batarchangel]

Wondering if I bolt some gt40 heads onto a 85 5.0/302 what all Ill have to change? Cam? lifters?

 

[woodsnake]

YOu can swap the heads, with out changing anything other than the intake manifold gaskets. Just bolting on the heads won't be much of a gain though. What are your overall performance objectives? Lots of folks here have built motors, and learned many learning curves!

 

[Hoss]

I have heard you can gain about 40 horsepower with that head swap alone. Im sure others have done it and will chime in soon.

 

[67MercCat]

great upgrade, I did it to my 289 about a year ago. I could really feel the power on the freeway. Just make sure you get them rebuilt. you dont have to change anything, its a straight bolt on to your engine

 

[AndyM]

Anybody try this in a '68 with an early model 302? What type of headers would you use?

 

[67MercCat]

I swapped them onto my buddies 68 but I think he had a roller block because it didnt have the clutch zbar hole in the side of the block. I would imagine that you would have to check the pushrod difference if any. I have some gt40 pushrods if you ever need to compare em I'll send you one.

 

[AndyM]

I will probably wait a few years and put a 351W in it but I defiantely need to know what my options would be.

 

[jk69cat]

you need to watch piston to valve clearance on a 85 ,86 5.0 other than that bolt them on!