will the pistons off a 08 4.8 swap on to a 2001 5.3? i ask because i read somewhere that the newer engine have float pins .thanx
will the pistons off a 08 4.8 swap on to a 2001 5.3? i ask because i read somewhere that the newer engine have float pins .thanx
anyone! i ask this ? becuase i just purchased a low milage 2008 4.8 with 243 heads . i got motor just for the heads and injectors ,but now i have this idea of swapping pistons.i know there are better combos but this is what i have to work with for now. another ? how much compression will i lose if i just do a head swap
Just swap the pistons and rods on your crank.
5.3, E-fans, LPP longtubes w/offroad Y, Dual Magnaflow, K&N Cold Air, 160 thermo, Voodoo 212/218 .531/.531 113 cam, Nelson Tune, 4:11, Built 4L65E, TrailBlazer converter. SOLD
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2006 2500HD 6.0L Crew Cab 2WD
I'm pretty sure that wouldn't work as the 4.8 has longer rods than the 5.3.Originally Posted by Jermoslin
Big slow mud truck with a TUNE!!!!!!
The floating pin is in the rod,all piston pins float in the piston. You should be fine with putting the 4.8 pistons on you 5.3 rods for a nice compression bump.
01 ECSB 1/2 ton 4x4 6L GMC
11.03@127
KB Racing Borg Warner S475 turbocharged
remember its not as simple as you may think. stock rods are pressed fit, where as it requires more effort then a lock style pin
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
press fit piston has no groove for keepers so teflon buttons would have to be used to keep the floating pin from floating out to the cylinder wall and gouging it if a floating pin connecting rod was used.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
4.8 /5.3 have the same bore
they should fit, just that 5.3's have a shorter rod,
+ you should gain compression and flow, due to ur 5.3 has deep dished and 4.8's have fla tops and 243's should help alot...
More flow from a flat top piston?
But anyway, if the pin bore is the same new 4.8-old 5.3 then you can have your old pistons pressed off and the new ones pressed on to your 5.3 rods. the press fit in the rod will keep the pin from hitting the cyl wall so you shouldn't need the spiral locks.
I don't know if you can put PM rods in a rod oven. maybe someone here will know.
01 ecsb 5.3 4x4 z71
Avalanche 17s and a pant load of miles
61 Corvette
350, 4 speed, 4.56's
32 Ford 4 door sedan
keeping it "stockish"
flat tops give you more compression than deep dish pistons.
what give you more flow are the heads, not the pistons.
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