Vortec replacements (advise)

[Syclonewillie]

Hello everyone, I'm new to the site & just posting under Willies name until I can get the bugs with my account squared away. (gt357)
I'm seeking build advise on replacing a stock sy motor with a vortec long block. What should I look for and what issues will I run into.

Thanks in advance. Donnie

 

[jwaller]

Re: Vortec replacements (advise)

the search is your best friend. this has been covered many times.

IMO until you try and make over 500 hp there is nothing wrong with the vortec block. cant use the pistons or rods but it makes a good starter.

you could use a vortec longblock if you limited yourself to base boost(7-8psi) and pay close attention to detonation.

our intake will not fit vortec heads without mods so you will have to pull the heads and have them drilled if you want to use the stock syty intake.