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Jeep Street and Performance Do you like to go fast in your Jeep?

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Old July 26th, 2012, 23:28
alex22's Avatar
alex22 alex22 is offline
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Join Date: Oct 2007
Location: CT: waterbury area
Posts: 1,434
Performance 4.0 build

So I picked up another XJ a month or so ago that needed a new head, its an 01 and the head was not repairable. I had planed on just doing a quick head swap, but the more I looked the less I liked so out came the engine. The cam was starting to wear, rings were shot, expansion plugs were almost rotted through, pistons were scuffed badly and the timing chain was slopped out. The crankshaft main journals were at minimum spec, main housing bores were at maximum and the factory put in a half set of .001 under bearings. But other than that it was great...

New parts and labor:
Clean and magnaflux.
Block was align honed to minimum spec so I can use STD bearings without Excessive oil clearances.
Balanced rotating XXXembly.
ARP rod bolts.
.020 over Speed Pro pistons
Block decked to bring the pistons to about .005 in the hole for 9:1 compression and tighten the squish.
Comp Cams 68-232-4
Pre 1997 timing set and bolt with spring loaded pin.
Mopar performance valve springs & retainers
New head casting with some porting and chamber cleanup and performance valve job.
Ebay SS header and high flow precats.
Magnaflow high flow cat and Dynomax catback
AFE intake.
4 hole injectors.

Will moving the IAT sensor into the intake tube/airbox or an adjustable MAP be enough to keep the A/F ratio correct with the breathing mods?

Will 19lb injectors be enough for this?

Can the Mopar Performance valve springs and hardened locks be used with the late style 3 groove keepers or do I have to get the older style valves and use single groove hardened keepers?

no, this will not become a stroker.
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