Just a little heads up for the LT1 guys.

We offer an LT1 408 for people looking for a power upgrade.
With a good set of heads on top 500+ hp is an attainable goal. We distribute HKE precision racing engines, this is one of our special builds

 

Do you use the stock LT1 block to get that displacement, or is it aftermarket?

 

Stock LT1 block .030 over with 4" stroke crank = 408

 

what is the cost of this build?

 

Do you have a web site?

 

more info please

 

Correct bj , its a 4.030 bore by 4" stroke.

We supply a seasoned OEM LT1 block.

The crank is a custom build for us/HKE from Callies. The cost of the short block is $4600, it is for n/a use only, n2o or FI is not recommended for use with this build.

ccperformanceparts.com is our website, not sure why my sig isn't showing..LOL

 

This motor is a 408.18" motor, which by NHRA rules would be called a 409. So some guys call it a 408 and others call it a 409... which has a Chevy sound to it!

But these motors make alot of torque and run well. I have done several, and they will get a heavy street car accelerating quickly with the right parts.

That is a good price for what's involved to do one of these.

 

I actually don't have this listed on the website but will add it to it. We have several of our more popular builds listed but offer any cubic inch combination from a 347 to 506.

http://www.ccperformanceparts.com/index.html

 

I don't see anything LTx only LSx

 

See post 9

 

How about some other specs....for example the specs needed to figure out compression ratio (piston cc, distance below deck...) rod legnth etc.

What kind of rpm will the rotating assembly handle?


Mike

 

2-bolt or 4-bolt main seasoned blocks? upgraded main caps?

 

Wouldn't that require a lot of clearancing? I decided not to go with a 396 build on my LT1 because of the extensive clearancing required for just that. I also achieved close to 500 HP with just a 383, ported LT1 heads, and a lot of other stuff. With a 408, 500+ HP should be easily attainable.

 

Before you spend any money on machine work sonic test the block for cylinder wall thickness as we have seen a few that were not worth putting caps on.

Good luck with your build
Carl

 

Might check with Chad at Golens Engines as the do a lot of the LT-1 engine and seem to have a good rep for what they ship out.

http://www.golenengineservice.com/

 

Sorry, I'm working on that. What would you like to see added?

The specs on the short are
Seasoned Core Block - Cleaned and Magnafluxed

Callies 4.00 crank ( special order)
Callies Compstar 6.000 SBC Rods W/ ARP 2000 rod
bolts
Wiseco Custom Pistons
Wiseco Custom Pins 9310 Tool Steel .200 wall
Wiseco GFX Piston Rings
ACL MS909 H Main Bearings for 350 SBC
ACL CB 663 H Rod Bearings for 2.100 SBC
Chamfered Race Bearings
ARP 4-Bolt Main Studs without windage tray for SBC
Freeze plugs kit
Eagle 400 SBC Splayed Caps 18 degree

The pistons are custom so we can accommodate compression needs.

Yes there is some clearancing involved, but thats the builders job. We recommend that you have us assemble the engine from intake to oil pan to assure things are done properly.

RPM is more a valve-train thing but with Compstar rods and ARP 2000 rod bolts your good to go. If your going to spinning excessive rpms we would discuss maybe an upgrade or two.

Yes I know 500+ should not be an issue but some people have a hard time with me saying an LT1 makes 500+ so I avoid laying out numbers....
BUT this build in a Camaro with an automatic trans made 525+ at the wheels in Houston. It was a private dyno there are no graphs to post and this causes issue for some people but it was by a business man in Houston who owns his own dyno at his house. HKE did the build and the customer reported back his numbers. It was a solid roller deal as well.

HKE has a superior reputation, having taught at SAM ( School of Automotive Machinists) Erik Koenig owner of HKE (racer7088 is his fourm name) is one of the more meticulous builders you will find anywhere. LS or LT doe's not matter his reputation for building precision engines stands above.
(Henessey wanted him to build for him) and he does Mopar and Ford as well.
Maybe you could start your own thread about Golen. This thread was to introduce our LT1 408 to C4 owners.

 

Custom Callies crank and Compstar Rods...are a good foundation for a great rotating assembly..

Is it a forged steel 1 piece RMS and stock balance (internal front/external rear)?

Do you have to do a partial fill on the block?

Mike

 

Hi Mike, no fill on block and it is internal balance front and rear.

 

You are right that you have to know where you are removing metal and it also pays to use parts that require very little clearancing as well which we do. Thankfully also the LTx blocks have a higher water jacket than the old school SBC.