5.3L w/ 317?

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Mar 4, 2017 | 04:52 PM

#21

20psiofevil

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I would use the on3 70mms with .68 ar. I'm going to use one of these on a 4.3l with 96 ar to see how fast it will go while I build a new hot side for a borg s400.

Last edited by 20psiofevil; Mar 4, 2017 at 05:01 PM.

Mar 4, 2017 | 06:05 PM

#22

OxTheGreat

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From: Houston

Well today I pulled the trigger I was able to get a really good deal on a complete a53 pull out and a set of 317 heads for a thousand even. The only bad part was that the harness I got was for an 07 Silverado so I'm not entirely sure if that's going to pose a problem in the long run.

Mar 4, 2017 | 06:29 PM

#23

Husker98

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From: St. Edward, NE

There are plenty of 5.3 317 combos out there working great. It was a short while because it was put in as a temporary motor since my 6.0 wasn't done yet and I hit it with a 150 shot on top of the boost at a no prep race and the gen 3 rods didn't like it. Broke 3 and bent the rest

Mar 4, 2017 | 08:40 PM

#24

OxTheGreat

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From: Houston

Quote:

Originally Posted by Husker98

Yea im a little worried about my 3rd gen rods. But having a hard time comitting to aftermarket rods.

Mar 5, 2017 | 07:41 AM

#25

Husker98

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From: St. Edward, NE

If you want to make over 650whp and be reliable I'd invest or at least upgrade to gen 4

Mar 5, 2017 | 08:08 AM

#26

OxTheGreat

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From: Houston

Quote:

Originally Posted by Husker98

If you want to make over 650whp and be reliable I'd invest or at least upgrade to gen 4

Ive been on the look out for gen 4, so far no luck. Thanks for info guys

Apr 5, 2017 | 04:27 PM

#27

OxTheGreat

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From: Houston

Quote:

Originally Posted by Forcefed86

On E85 I gap the tops at .022 and bottoms around .024. No reason to go with more IMO. Ran 26bs on the 1.10 t4 S475 but it needed more turbo. The cheaper 1.32 t6 is the way to go.

I wouldnt run the compression that low with a manual. U really need a converter and trans brake to help build boost when u dont make much power NA

So i ended up going with the S475 t6 1.32 turbo on my build. However im keeping stock heads to keep cr up to build boost on the brake. How did you gap your rings? By hand or grinder?