5.3L

hey all i am new to using forums and i have decided to build a 5.3L. I would like to make 500 hp without boost or nos. there is no budget and i want to put the best of everything in it, starting at the crankshaft and up. what is the list of mods i need? i will bore the engine but i don't know how big to go b4 my cylinder sleeves are to thin. plz help i would like to start asap
5.3L is online now Report Post

gnx7

iTrader: (28)

What type of racing? 500 flywheel n/a will be tough.... Much easier with a 6.0 block.

You could bore it to 3.9" and make a 5.7 with the stock crank. Running ported heads that could make 500 flywheel.

5.3L

i know i wouldn't need to do the crank because its steel but I'm looking to do a complete build with quality everything. i don't wanna go bigger engine. but i see where you are coming from. really want i want is street and drag built

gnx7

iTrader: (28)

Thank God that isn't one of the copper cranks in there. Those don't hold up well to racing.

Project GatTagO

iTrader: (7)

Word...

Andrew

KCS

iTrader: (20)

We have a search feature. You can search old and recent threads where the questions you're asking have already been answered and debated. You can even look at the Dyno Results section to see what parts made what horsepower/torque on different cars/dyno's.

You're basically going to find that you can bore and hone the cylinders to 3.90x" and make a 347 with the stock crank. If you meant 500hp at the flywheel, this should be adequate. With a 4" crank, you can get 383ci which will be better if your goal is 500hp at the tires. You can also run larger strokes, but most people are scared to...

Then people will recommend cathedral heads; anything from ported 243 castings to aftermarket heads like TFS/PRC/AFR/MMS/etc.

And as you already know, people will then recommend you call [insert cam guru name here] to spec you a cam.

5.3L

thank you so much i appreciate it. I'm new so I'm not very good at searching and all this stuff. love cars don't know enough

MuhThugga

If you bore the block, then you will be essentially going with a bigger engine, FYI.

If you want to maintain the ~5.3 liters of displacement, then I would take a 6.0 block and use the smaller crank and rods from the 4.8. That way, you have the larger bore of the 6.0 and still maintain the desired displacement of roughly 5.3L. I guess it would be 5.4L at that point (329 vs 325 cubic inches).