Jeep - AMC 4.0L and 4.2L Stroker Enthusiasts
https://www.jeepstrokers.com/forum/
How about if it is an old Renix? I need to rebuild my '88 XJ 4.0L, it has just over 407k miles and the compression is low. I'm considering a stroker build, but want to stay 87 octane, minimize cost, and minimize down time.Cheromaniac wrote:If you want to really keep things simple and low cost while having newly bored cylinders, you could do the modified "poor man's":
4.6L modified "poor man's" stroker
Jeep 4.2L 3.895" stroke crank
Jeep 4.0L 6.125" rods
Keith Black UEM-IC944-020 pistons
9.25:1 CR
Stock 4.0 HO camshaft
Ported HO 1.91"/1.50" cylinder head
Mopar/Victor 0.043" head gasket
0.070" quench height
Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, Accel 24lb/hr injectors with stock 49psi FPR for '96 and later engines
The only non-stock parts you'll need are the 258 crank, IC944 pistons, and Accel 24lb injectors.
Yes... but then again it would be worthwhile to at least do a changeover to a HO head. Check my build thread for more info.DonS wrote:How about if it is an old Renix? I need to rebuild my '88 XJ 4.0L, it has just over 407k miles and the compression is low. I'm considering a stroker build, but want to stay 87 octane, minimize cost, and minimize down time.Cheromaniac wrote:If you want to really keep things simple and low cost while having newly bored cylinders, you could do the modified "poor man's":
4.6L modified "poor man's" stroker
Jeep 4.2L 3.895" stroke crank
Jeep 4.0L 6.125" rods
Keith Black UEM-IC944-020 pistons
9.25:1 CR
Stock 4.0 HO camshaft
Ported HO 1.91"/1.50" cylinder head
Mopar/Victor 0.043" head gasket
0.070" quench height
Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, Accel 24lb/hr injectors with stock 49psi FPR for '96 and later engines
The only non-stock parts you'll need are the 258 crank, IC944 pistons, and Accel 24lb injectors.
Would the above recipe work if we changed from HO to Renix?
In the Stroker Basics forum?Muad'Dib wrote:
Yes... but then again it would be worthwhile to at least do a changeover to a HO head. Check my build thread for more info.
Yeah, it would still work but produce less HP. If you're strapped for cash and want to build the engine quickly so you can get the Jeep back on the road, just do the basic stroker rebuild. You can always swap the HO stuff ('91-'95 head, '99+ intake, '97+ PS pump/bracket, '91-'95 injector rail with supply/return fuel lines, '91-'95 TB) later on as your budget allows.DonS wrote:How about if it is an old Renix? I need to rebuild my '88 XJ 4.0L, it has just over 407k miles and the compression is low. I'm considering a stroker build, but want to stay 87 octane, minimize cost, and minimize down time.
Would the above recipe work if we changed from HO to Renix?