TYZ 67

I am new to this site and I'm sure this question has been asked before, but I have searched and couldn't find anything. I am building a 67' Chevy truck and I am going to put a 6.0 and manual 6 in it.

I am going to build a 6.0 stroker(4") 402 or 408 whatever it comes out to, forged pistons, good heads/valve train, and about the biggest cam I can run. Because the truck doesn't have to pass smog I can build it as radical as I want. I don't like to cheap out on stuff but I will also do something myself just for the expirience of it. The truck is going to be a weekend/car shows truck so daily drivability is not an issue. For this motor the more radical the better.

My question is- What is the max hp I can expect out of the 402/408? And about how much should I expect to spend?

Like I said smog and drivability are not an issue. Is 600 hp impossible?

Thanks in advance, I can use all the info I can!

TYZ 67

anyone?

InchUp

iTrader: (2)

Search the net for a few 402 and 408 builds to find parts lists and see what you like. 4" bore, 4" crank makes a 402. If you need a .030" clean up, it's now a 408. This build could go a thousand different ways so asking your power potential is quite bland. If you had a parts list, you'd get better responses.

PaulC

First things first.....1. Your Budget - a stock 6.0 bottom end can survive over 500hp dependably...but then things like to break or need replacing (stock valve train doesnt appreciate high revs) Thats your biggest outline. There are sponsers on this site that sell 6.0L motors that are rated to handle over 1,000hp because they're filled with expensive quality parts.

2. Your goals - What are they for the engine? just to hit the 600hp mark? Do you want a lot of low end power, or shift the powerband to the higher rpms?

Another question is what are your goals for the truck? Are you wanting to become a legit drag racer or king of the streets?

The biggest thing is the budget part of a project....all this power is going to be murder on old, used parts if you havent had a stong rearend put in, or shocks, sway bars, brakes, calipers/rotors

TYZ 67

My goals for this truck is a street truck that I can take to the drag strip for fun and to road tracks for fun. I am building it for handling, full tube frame, new 12 bolt rear, large disc brakes on all 4 corners. I'm going the the pro touring look but on a truck. My budget is not too big of an issue. I want quality parts. (I have a friend who owns a custom engine shop where I can get parts at cost).

Also I know that a parts list would help to estimate the HP/Torque but I will pick the best combo with my friend who builds engines. If anyone can give suggestions on some of the better parts and parts to avoid that would be helpful.

Thanks

santiago

iTrader: (28)

i would go with
cartek 5x heads
24x/25x cam
full bolt on with 1 7/8 headers

in my car this would net around 550rwhp.

Demonde Chiles

New to the Chevy world! Looking to put a stroked 6.0 in a 94 mustang gt...someone point me in the right direction!
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KCS

iTrader: (20)

Try Google.

taman86

iTrader: (19)

what ive been reading into that can reach 600+:

lightweight rotating assembly, as light as possible and be street-able
excellent heads- look into small bore ls7 heads with lightweight valvetrain and strong springs that can handle 7000+ rpms
low friction bearings
a custom cam for your package
and what others have mentioned above

taman86

iTrader: (19)

wow dude. you have got to be the best moderator in the history of forums man. big applause to you. people join forums to get help and ideas and your best, un-needed response, was "try google". that has got to make new-comers feel welcome here.

sxc Z28

Lots of them in here: https://ls1tech.com/forums/conversions-hybrids-28/

99 Black Bird T/A

iTrader: (4)

TYZ 67, do you want fuel injection or a carburetor?

600hp flywheel is very doable, Wegner's NASCAR Spec LS2 6.0 360 cubic inches the motor makes that with many factory parts such as lifters. The engine uses a single plan intake and 4 barrel carburetor. The engine is designed for road racing and spins 8,000 rpm+ with its titanium valves. With extra stroke to make a 403 to 408, bigger valves and matched cam 600 hp at the wheels should be doable. I doubt it will be fun to drive around town at low rpm. Dry sump oil and vacuum pump are used. Something like this professionally built will probably be $20,000 to $25,000

Likewise, an LS2 6.0 block with stroker crank, pistons etc ported LS3 heads, ported MSD intake with big 103mm TB could make 600+ flywheel and maybe hit 530 to 550 at the wheels, Im guessing $12,000 to $18,000 depending on what you want.

A crate LS7 for $13,600 plus a cam change and some head work should get you to 600+ at wheels.


Add a supercharger and it gets easier to make even more power with an LS2 or LS3.

For anyone to help you will really want to give more details on what you want, what's your budget and what parts for your build.

KCS

iTrader: (20)

He didn't really ask for specific information, just to be pointed in the right direction, so I thought that was a pretty efficient answer. Never mind the fact he bumped an old *** thread to ask it. Google would direct him not only back to links to LS1tech for "how to" information and build write ups, but also to links to vendors that offer parts that are not sponsors of LS1tech.

I suppose it's a good thing being a Moderator doesn't require your approval. Most of what we do as a Moderators probably isn't really noticed or appreciated. It's mostly taking threads posted to the wrong section and moving them to the appropriate sections. It helps when you have a question about swapping LS engines into Mustangs and can actually find the info where you would think it would be, like in the Conversions & Hybrids section. See what I did there?

KCS

iTrader: (20)

FYI, he hasn't logged on since 2008.

99 Black Bird T/A

iTrader: (4)

and I tried to compose a good reply...didn't expect a 9 year necro...guess I should look at the dates next time...thanks.