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First stroker - do i got this right?
Posted: April 20th, 2012, 9:00 pm
by EVIL95XJ
ok so a few weeks ago my motor took a dump, and my believing in fixing everything better then stock im going with a stroker and so far this is something im trying to do cheap as possible
first im buying a rebuild kit with stock replacment pistons for .030 bore, using the stock 4.0 rods, crane cam and stock 4.0 push rods, stock head
ive already got the 258 crank and 24# injectors, do i need adjustable map and FPR?
this is my first stroker build and first motor build ever, ive helped with a couple motors but never built my own svice oro bare with me
please help me with any advice or things im forgetting
thank you
Re: First stroker - do i got this right?
Posted: April 21st, 2012, 3:24 am
by Cheromaniac
EVIL95XJ wrote:first im buying a rebuild kit with stock replacment pistons for .030 bore, using the stock 4.0 rods, crane cam and stock 4.0 push rods, stock head If you're going to use the stock 4.0 rods you'll need the Keith Black IC944 forged pistons. Conversely, you'll need a set of 4.2 rods if you want to use stock replacement pistons. Either way you'd be wise to buy a new set of ARP 112-6001 rod bolts.
ive already got the 258 crank and 24# injectors, do i need adjustable map and FPR? You'll need either the adjustable MAP or the FPR but not both.
Re: First stroker - do i got this right?
Posted: April 21st, 2012, 5:44 am
by EVIL95XJ
thats what i was thinking but wasnt exactly sure, so my cheaper route is 4.2 rods right? ill have to buy new sence i dont have a donor motor
Re: First stroker - do i got this right?
Posted: April 22nd, 2012, 9:43 am
by Minerva954
I'm also building my first stroked motor a jeep. I've already got the block and 4.2 rods and crank at the machine shop getting cleaned up and bored. 030 over. I'm installing this on a 97 TJ that doesn't have a fpr so will I need an adjustable map? I've already got the 24# injectors as well.
Re: First stroker - do i got this right?
Posted: April 22nd, 2012, 10:22 am
by Cheromaniac
EVIL95XJ wrote:thats what i was thinking but wasnt exactly sure, so my cheaper route is 4.2 rods right?
Depends. Here's a price comparison of various piston/ring sets:
Keith Black IC944 pistons + standard moly rings: $533
Sealed Power H802CP pistons + metric moly rings: $270
Sealed Power H825CP pistons + standard moly rings: $298
Sealed Power Z677AP pistons + standard moly rings: $250
Unless you can find a decent set of 4.2 rods for much less than $230, you might as well take the 4.0 rod/IC944 piston route.
Re: First stroker - do i got this right?
Posted: April 22nd, 2012, 8:46 pm
by Retlaw01XJ
Cheromaniac wrote:EVIL95XJ wrote:thats what i was thinking but wasnt exactly sure, so my cheaper route is 4.2 rods right?
Depends. Here's a price comparison of various piston/ring sets:
Keith Black IC944 pistons + standard moly rings: $533
Sealed Power H802CP pistons + metric moly rings: $270
Sealed Power H825CP pistons + standard moly rings: $298
Sealed Power Z677AP pistons + standard moly rings: $250
Unless you can find a decent set of 4.2 rods for much less than $230, you might as well take the 4.0 rod/IC944 piston route.
I paid $360 for the KB944 pistons and about $50 for moly rings, so shop around!
I went with the stronger forged pistons since my original '01 4.0 failed due to a broken #2 piston skirt.
Re: First stroker - do i got this right?
Posted: April 23rd, 2012, 6:38 am
by EVIL95XJ
i got a set of rods from a member here for $80 and i got a friend that works at a machine shop so if they need any work it will cost me next to nothing
Re: First stroker - do i got this right?
Posted: June 13th, 2012, 9:58 pm
by bamaboyz71
I have some 4.0 rod's I'll take 20 dollars for plus what ever it cost to ship. I just pulled "em out of the engine that I'm stroking. I'm going with the 4.2 rod's I would swap for some 4.2 or just what ever. keep it in the ditch.