header stuff and flex plate

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maricopacody
Posts: 3
Joined: May 4th, 2021, 6:31 pm
Stroker Displacement: 4.7
Vehicle Year: 1992
Vehicle Make: Cherokee
Vehicle Model: Laredo

header stuff and flex plate

Post by maricopacody »

what kind of header is a good one to run on this 4.7 stroker and do they make a stronger flex plate for auto trans than OEM stock stuff I can find one
275/350 I-6
Making Progress
Making Progress
Posts: 75
Joined: February 4th, 2020, 8:48 pm
Stroker Displacement: 4.7
Vehicle Year: 1985
Vehicle Make: AMC
Vehicle Model: CJ-7
Location: NC

Re: header stuff and flex plate

Post by 275/350 I-6 »

I used a Banks header on my build in my CJ-7 and it seems to be fine, no complaints from me.

As far as the flexplate goes, I would recommend using an OEM unit. Unless there is an aftermarket company out there making one that I have never heard of, the only other option is an OEM style replacement that is probably made in China.

I bought a pioneer flexplate for mine, and it wasn’t round. When I cranked the engine with the starter I could look in where the CPS sensor mounts, and see the ring flange rising and falling. That told me it was not round. I bought an old rusty OEM flexplate and did the same check and it spun true.

I am running the old rusty OEM unit.

The new pioneer junk is hanging on the wall in my shop.
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275/350 I-6
Making Progress
Making Progress
Posts: 75
Joined: February 4th, 2020, 8:48 pm
Stroker Displacement: 4.7
Vehicle Year: 1985
Vehicle Make: AMC
Vehicle Model: CJ-7
Location: NC

Re: header stuff and flex plate

Post by 275/350 I-6 »

The pioneer flexplate for a 1995 YJ.

A used YJ flexplate.

I am currently running the used one because it spins true, unlike the junk pioneer unit, from China.
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