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4.8 stroker build

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GreenYJ
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Joined: October 21st, 2016, 2:02 pm
Vehicle Year: 1994
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: 4.8 stroker build

Post by GreenYJ » June 21st, 2018, 6:50 pm

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1994 Sahara YJ

Russ Pottenger
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Joined: August 15th, 2009, 1:27 am
Stroker Displacement: 4.7
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee

Re: 4.8 stroker build

Post by Russ Pottenger » June 21st, 2018, 10:44 pm

You're welcome to hit me up if you have any problems locating some .927 AB bushings.

With the big end of your rod housing bore being on the high you'll likely have over .0025 oil clearances.
I'd recommend checking them before you re-bush in case you have to cut the cap/resize to tighten it up.
Then when you re-bush you'll be able to correct the center to center.

Russ Pottenger
Bishop-Buehl Racing Engines
531 N. Lyall Avenue
West Covina, California 91790
Work (626) 967-1000
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SkylinesSuck
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Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: 4.8 stroker build

Post by SkylinesSuck » June 22nd, 2018, 4:52 am

.120 over?!?!?! Wow! I didn't know that was possible/practical.

Russ Pottenger
I love JeepStrokers.com!!
I love JeepStrokers.com!!
Posts: 632
Joined: August 15th, 2009, 1:27 am
Stroker Displacement: 4.7
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee

Re: 4.8 stroker build

Post by Russ Pottenger » June 22nd, 2018, 9:48 am

SkylinesSuck wrote:
June 22nd, 2018, 4:52 am
.120 over?!?!?! Wow! I didn't know that was possible/practical.
Chris,

.120 is probably the limit.
For practical purposes I've limited my Strokers to a 3.970 bore. This allows me to stay within a commonly available OEM 4.000 bore head gasket and a common ring package.


The OP probably was unaware of being able to order cost effective custom piston eliminating the compromises in running a piston with the wrong dish, pin bore and unnecessary valve pockets.

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SkylinesSuck
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Posts: 361
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: 4.8 stroker build

Post by SkylinesSuck » June 22nd, 2018, 12:51 pm

Good info, thanks! :rockout:

GreenYJ
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Joined: October 21st, 2016, 2:02 pm
Vehicle Year: 1994
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: 4.8 stroker build

Post by GreenYJ » June 22nd, 2018, 5:43 pm

If had known about Russ's .090 pistons I would have probably gone that route. I had been scouring through piston catalogs for something close to what I wanted. Fyi cometic makes a big bore head gasket. 4.030 or 4.060, can't remember exactly. I sonic tested 4 blocks before going with this one. I wouldn't do this for a customer because of potential reliability issues, but I'm willing to push my own luck.
1994 Sahara YJ

Vortex44
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Joined: June 28th, 2018, 2:15 am

Re: 4.8 stroker build

Post by Vortex44 » July 2nd, 2018, 6:30 am

Nice to hear that the build hasn't stopped.

GreenYJ
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Vehicle Model: Wrangler

Re: 4.8 stroker build

Post by GreenYJ » July 7th, 2018, 7:20 am

I don't have a torque plate so I thought I would try this old school method. The cylinders didn't seem to move much if any, unlike doing this on a SBChevy. Also noticed block honed very straight, didn't have to chase the tight spot like a 302 Ford. Not sure if it's the short cylinder or metallurgy, but I like the cylinder walls not moving around.
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1994 Sahara YJ

GreenYJ
Learning to use the board
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Posts: 30
Joined: October 21st, 2016, 2:02 pm
Vehicle Year: 1994
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: 4.8 stroker build

Post by GreenYJ » July 7th, 2018, 7:25 am

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1994 Sahara YJ

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