408 stroker
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Teching In
Joined: Jul 2015
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408 stroker hi everybody Im new hear. I have always been a gear head I have helped rebuild and overhaul a few motors. I bought a 2003 gmc sierra with a LQ4 6.0 motor and a 5 speed tranny. the truck has a lot of miles on it and I have been thinking about turning my motor into a 408 stroker. now I have the jest of it and only a few questions. can I use stock heads, what cam would be best, will I have to change and external parts starter, throttel body, ect. this truck will be a daily driver so what gas mileage could I expect and will my tranny hold up ? thanks guys n gals sorry for that long post.
Everything external is reusable (if just a DD truck) you will need machine work and new rotating assembly (for bore and stroke to 408"). Search and you can read for days on different 408 builds.
Thread Starter
Teching In
Joined: Jul 2015
Posts: 20
Likes: 0
Thanks
I haven't worked on any newer stuff everything I have ever done was out if the 80s or back so my questions is what exactly am I getting into I want a DD 408 for under 4 grand, if possible I want around 500 hp and lots of torque I am going to use the stock 317 heads and am not sure on a cam yet I want something that will give good torque low and high RMP and the stock throttle body now what kind of performance could I expect and since this will b a DD what would my gas milage be like any help will be much appreciated thanks again
Motor will be in a 2003 gmc Sierra 2500hd with a nv4500 transmission
I haven't worked on any newer stuff everything I have ever done was out if the 80s or back so my questions is what exactly am I getting into I want a DD 408 for under 4 grand, if possible I want around 500 hp and lots of torque I am going to use the stock 317 heads and am not sure on a cam yet I want something that will give good torque low and high RMP and the stock throttle body now what kind of performance could I expect and since this will b a DD what would my gas milage be like any help will be much appreciated thanks again
Motor will be in a 2003 gmc Sierra 2500hd with a nv4500 transmission
