Important if you run D-H/S or SA

Originally Posted by David Lee

I am building a 67/68 cuda right now and to answer your question I bought two 340 dealer replacement blocks and have them sleeved down to a 318 bore. I plan on doing my own short block and have shane studley do my heads.

And I have heard that aftermarket blocks get a hell a lot more hp than 5.

Well I'm about 60 short of Jerry so hopefully that new block will get me close. I hope Warren Johnson, or somebody of that caliber told you that. I should be in good shape then. Thanks for clearing that up. Good luck with your project

[David Lee]

Originally Posted by Todd Hoven

Well I'm about 60 short of Jerry so hopefully that new block will get me close. I hope Warren Johnson, or somebody of that caliber told you that. I should be in good shape then. Thanks for clearing that up. Good luck with your project

Todd, All I want is an even playing field across the board. Nothing more

[Greg Hill]

For you 71 and later 340 guys there is a Thermoquad adapter in the direct connection catalog that should be easy to get approved. It's from Edlebrock too.

[Billy Nees]

Originally Posted by David Lee

Todd, All I want is an even playing field across the board. Nothing more

So just what is it about your 318 combo that you feel isn't fair?

[David Lee]

Originally Posted by Billy Nees

So just what is it about your 318 combo that you feel isn't fair?

I never said there was anything unfair about my combo, but there are combos who can't find any replacement blocks such as you

[Hacksaw]

If someone building a combo is so concerned about the lack of availability of an aftermarket block, then he should build a different combo and buy the block of choice. I always say, the planning is the hardest part.

[David Lee]

Originally Posted by Hacksaw

If someone building a combo is so concerned about the lack of availability of an aftermarket block, then he should build a different combo and buy the block of choice. I always say, the planning is the hardest part.

Really, you are willing to eliminate that many combos.

[Paul Precht]

Originally Posted by David Lee

I am building a 67/68 cuda right now and to answer your question I bought two 340 dealer replacement blocks and have them sleeved down to a 318 bore. I plan on doing my own short block and have shane studley do my heads.

And I have heard that aftermarket blocks get a hell a lot more hp than 5.

David, it would be a good idea to fill them also. A stock 340 typically has about a .100" thick wall and if you run it as a .060" 318, you'll have approx .135" which won't break but it won't make great power either. A lot of aftermarket blocks have about .300" walls.

[Mark Yacavone]

350 blocks rare or something? Why would they even approve an after-market block to replace something that can be found in any junkyard in America?

[David Lee]

Originally Posted by Paul Precht

David, it would be a good idea to fill them also. A stock 340 typically has about a .100" thick wall and if you run it as a .060" 318, you'll have approx .135" which won't break but it won't make great power either. A lot of aftermarket blocks have about .300" walls.

I was planning that already, when I ready to start my engine, everything will be loaded up for a trip out to Shane's place in Utah and brought back home for assembly. Right now I look like a ghost from body filler from working on the roof