Cool, thanks for sharing. I love to see naked enguns. 
450 engine build
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
450 engine build
Hey Guys, I am freshening up my 450 (4.165x4.125). The pistons had some wear, but the cylinders only had .001 wear, so I kept the 4.165 bore and got new pistons. So I will have one more build in it at 4.185. It got a real light hone and new crank, rings and bearings, timing chain ect. I reused alot of the parts that were real good like cam, lifters, AFR 245's and Crower billet rods. They were like brand new. You can see some major clearancing in the Bowtie block for the 4.125 stroke. The block has a low fill, it would have hit water to make it clear. But everything is coming together nicely.
The cam is a Crane 252/260 .714/.674 on a 112 LSA solid roller
I degreed the cam and it was 1 degree advanced. So I left the cam timing there.
The cam is a Crane 252/260 .714/.674 on a 112 LSA solid roller
I degreed the cam and it was 1 degree advanced. So I left the cam timing there.
Last edited by tpi 421 vette; Jul 2, 2013 at 09:58 AM.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
And Willie, I don't think it will be running by July 4th. But it should be running soon!
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Le Mans Master
Joined: May 2004
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That cam looks alien after staring at so many street friendly hydraulic cams.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
I think with a stock tpi on a 450CI engine it wouldn't go over 2000rpm
Actually it's getting the ported Miniram by Tony Mamo back on it (Mamoram) All of the ports flow between 400-410cfm. And a Monoblade T.B.
Actually it's getting the ported Miniram by Tony Mamo back on it (Mamoram) All of the ports flow between 400-410cfm. And a Monoblade T.B.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
I went thru it mainly because it had a issue with the crank and damper from an old machine shop I used that honed the damper too loose, and made a mess out of the crank. With a 4.125 stroke, a 5.85 rod, the geometry isn't good. But I knew that going into it. I got 7 years of use out of it. They tend to wear pistons with all of the sideloading going on. The 200 shot of nitrous helps the wear along in it also. When you build this big of a SBC, you are trading long term durability for cubic inches and potential power. It's not for everybody, but it works for me.
Last edited by tpi 421 vette; Jul 2, 2013 at 03:30 PM.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
Well Guys, it's completely assembled ready to go back in the car. I just need to take it off the stand and put the flywheel and McLeod dual disc on it. It should be running soon.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
Racer
Joined: Feb 2003
Posts: 440
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From: aumsville oregon
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Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
I just put the AFR 245's on it not too long ago with the Crower shaft system. I haven't run it at the track since doing those upgrades. So it's a new engine combo I haven't really tried out yet. Everything is now fresh and new.
