5.7 hemi build--first step completed

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swifter

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Well I'm pulling the trigger finally,I'm going to build a stroker 5.7,I picked up a 5.7 block that the machining is already completed on.Here is whats done: Bored .40 over,Main caps line honed,The block has been boiled and degreased with new plugs and new cam cap put in,It is at a builder here in Wis that has worked and built nascar motors and now builds 1200 hp boat race motors for Mercury marine here in Wis. He has a complete Machine shop. I will try to finally load pics here when we decide what components/Route we are going to take-He has a great relationship with Compstar and uses there components on his boat motors so he is looking into the products as we speak.I know we are going to use main studs and head studs and the bottom end will all be forged and I hope some day will be super charged--Will keep u guy's up-dated--Swifter a.k.a Steve
 
Sounds good!!! I know you said that it was bored and I am guessing honed already, I have a torque plate if you need to borrow it. No biggie if it's done. If you need it let me know and I will get it to you ASAP. I am very busy and I know I let one of the other guys down with some connections I was going to give him but I will do my best!!! Keep us updated!!!
 
I'm gonna ask a dumb question, but it's something I've never given any thought to until now. Would line honing the main caps on a 5.7 Hemi, or a 426 Hemi for that matter make enough difference to where the cross bolts would be out of whack? I have always had 2 bolt main small blocks, and have never thought about what line boring/honing would do to cross bolted mains. I saw where the OP's block was line honed before he got it, is what got me to wondering about it.
 
I've heard/read in many posts that the 5.7 block has thicker cylinder walls than the 6.1 and thus can be bored greater than the 6.1 block. As a matter of fact according to the Chrysler Factory Service manual neither the 5.7 or 6.1 is rebuildable. That being said common wisdom is that the 6.1 is limited to AT MOST .020 overbore, while the 5.7 will handle between .040 and .080 depending upon the block.

So here's my question: Did you sonic test your block and if so how thick were the cylinder walls after the .040 bore?

Regards,

Joe Dokes

PS best of luck with your project.
 
Right now my engine builder has to get a few of his 1200hp boat engines out and down to Florida for some show--That is the first thing he will do is determine will a sonic check how good or thick the walls are and the general condition of the block-The machining was done on the block when I picked it up in Illinois--It was going to go into a twin turbo drag car but the driver was killed when a truck fell on him and I bought the block from the crew chief.Before anything is bought Allen and I are going to do some MAJOR research on exactly the options we have.I have been on the phone with STU from Inertia motor sports to get his opinion on the products that are on the market,Most likely I will use his big valved 5.7 heads,He put me in the direction of k1 products but my builder uses Callie's stuff in all his builds ,The first bump in the road may very well be the .40 over pistons but we will see--And yes you are correct the 6.1 block is very limited on over-boring If I was
told right .20 is all you can do.--I will keep you guy's up-dated but I'm taking this slow and only want to do it once--Steve
 
I will be tolling your progress. Sounds like you are off to a great start.

Aj
 
Joe--As soon as it's done the wall thickness will be posted here--Steve
 
Not much to report other than just ordered my cylinder heads from Indy and I'm going to pick them up at the trade show along with my aluminum flywheel and new RST clutch from Jamie at the show,Just waiting for Allen the engine builder to get his sprint car motors put back together and I should be next inline,Once I get the heads back with the flow numbers Allen going to do some homework on the cam grind that we will order.--Steve
 
Anyone help me with this block # 5302131968 or 53021319cb this is the casting # and we can't find a casting date anywhere--Steve
 
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