Will they fit?
Those heads are designed for a 4.03" bore. In a 5.3 application the valves would be severely shrouded. Also, I haven't checked myself, but I would question whether or not the valve would even clear the bore. I would choose a different head myself.
Lonnie
Lonnie
3.78-(2.08+1.6)=0.100.....TERRIBLE
Some 5.3 blocks can be bored out to 3.898-3.905 range; however MOST engine guys prefer to not go any larger than 2.04-2.055 sized intake valves even on the LS1 sized bore.
Different heads is probably your best option in all honesty.
Some 5.3 blocks can be bored out to 3.898-3.905 range; however MOST engine guys prefer to not go any larger than 2.04-2.055 sized intake valves even on the LS1 sized bore.
Different heads is probably your best option in all honesty.
