Piston question! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Gavster · 03-30-2005, 03:34 PM

Hey guys! I just bought my 89 coupe and a set of ross pistons came with the car as part of our deal. they are for the ka24e thats in the car. I am going to get a DE however to swap in as i want the dohc head for my build up...are the e and de pistons the same? In otehr words...can i use the ross e pistons in a de block or will i have issues? Thanks!

Gavster · 03-30-2005, 03:42 PM

Heres what im workin with...in case you wanted to see!

240meowth · 03-30-2005, 03:45 PM

i'm not an engine man, but i did some hw, i recall that the OEM pistons on ka24e will not fit on ka24de, it's just a slight bit off. You have to sand it or something.

***S14DB*** · 03-30-2005, 03:53 PM

They will fit and bump your compression upto like 11:1 with stock SOHC in a DOHC. What's the static on those ross?

Gavster · 03-30-2005, 04:16 PM

theyre 8.5:1 ....maybe i should just do a sohc turbo? i have 2 sohc motors i can have use of...dont have to worry about swapping anything....but i wonder if i can make big power with it....hmmm...opinions?

skatanic28 · 03-30-2005, 06:21 PM

check out ka-t.org for more info, but jordan over there has had pretty good results. heres a pic of one of his setups.

Andrew Bohan · 03-30-2005, 11:28 PM

that dosn't look like a sohc piston to me. that's hellllla deep

Gavster · 03-31-2005, 04:13 PM

mad dish yo! ...but the box and invoice both say KA24E so thats what ive got to go off of. the car is an E...owner had palns to turbo an E...everything points to E...so im pretty certian it is...but im no expert

infinitexsound · 03-31-2005, 07:04 PM

bottom end internals are swappable... yeah u can use those pistons..
rods and pistons.. not to sure about the crank... might want to go on KA-T.org.. to make sure for any other parts... u might want to round off those edges with a red scotch pad.... then polish or ceramic coat.. either or..
id stik with the 12v engines because u have so many of them... u can always do another build and swap in a prebuilt engine on the side . when ever the current one bites the dust... its all tuning, ppl are getting big HP gains from a stock bottom end.. buts its very sketchy... lots of tuning... is ideal when ur using the stock engine... deburr those rods,polish, shotpeen, knife edge the crank... find some rod bolt fastners... arp doesnt make em for the KA.. but they use the BBC rod bolts.. minor rod tweak have to be done in order for them to fit... but yeah go to ka-t.org its got lots of good facts....ppl there are very cool

03-30-2005, 03:34 PM	#1
Gavster Zilvia Junkie Join Date: Mar 2005 Location: Charleston, SC Age: 39 Posts: 512 Trader Rating: (4) Feedback Score: 4 reviews	Piston question! Hey guys! I just bought my 89 coupe and a set of ross pistons came with the car as part of our deal. they are for the ka24e thats in the car. I am going to get a DE however to swap in as i want the dohc head for my build up...are the e and de pistons the same? In otehr words...can i use the ross e pistons in a de block or will i have issues? Thanks!

03-30-2005, 03:45 PM	#3
240meowth Nissanaholic! Join Date: Dec 2001 Location: torrance, ca Age: 41 Posts: 2,407 Trader Rating: (4) Feedback Score: 4 reviews	i'm not an engine man, but i did some hw, i recall that the OEM pistons on ka24e will not fit on ka24de, it's just a slight bit off. You have to sand it or something. __________________

03-31-2005, 07:04 PM	#9
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 42 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	bottom end internals are swappable... yeah u can use those pistons.. rods and pistons.. not to sure about the crank... might want to go on KA-T.org.. to make sure for any other parts... u might want to round off those edges with a red scotch pad.... then polish or ceramic coat.. either or.. id stik with the 12v engines because u have so many of them... u can always do another build and swap in a prebuilt engine on the side . when ever the current one bites the dust... its all tuning, ppl are getting big HP gains from a stock bottom end.. buts its very sketchy... lots of tuning... is ideal when ur using the stock engine... deburr those rods,polish, shotpeen, knife edge the crank... find some rod bolt fastners... arp doesnt make em for the KA.. but they use the BBC rod bolts.. minor rod tweak have to be done in order for them to fit... but yeah go to ka-t.org its got lots of good facts....ppl there are very cool __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

03-30-2005, 03:42 PM	#2
Gavster Zilvia Junkie Join Date: Mar 2005 Location: Charleston, SC Age: 39 Posts: 512 Trader Rating: (4) Feedback Score: 4 reviews	Heres what im workin with...in case you wanted to see!

03-30-2005, 03:53 PM	#4
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	They will fit and bump your compression upto like 11:1 with stock SOHC in a DOHC. What's the static on those ross?

03-30-2005, 04:16 PM	#5
Gavster Zilvia Junkie Join Date: Mar 2005 Location: Charleston, SC Age: 39 Posts: 512 Trader Rating: (4) Feedback Score: 4 reviews	theyre 8.5:1 ....maybe i should just do a sohc turbo? i have 2 sohc motors i can have use of...dont have to worry about swapping anything....but i wonder if i can make big power with it....hmmm...opinions?

03-30-2005, 06:21 PM	#6
skatanic28 Zilvia Junkie Join Date: Oct 2002 Location: ny Age: 41 Posts: 443 Trader Rating: (0) Feedback Score: 0 reviews	check out ka-t.org for more info, but jordan over there has had pretty good results. heres a pic of one of his setups.

03-30-2005, 11:28 PM	#7
Andrew Bohan Post Whore! Join Date: Apr 2003 Location: Ohio Posts: 8,331 Trader Rating: (2) Feedback Score: 2 reviews	that dosn't look like a sohc piston to me. that's hellllla deep

03-31-2005, 04:13 PM	#8
Gavster Zilvia Junkie Join Date: Mar 2005 Location: Charleston, SC Age: 39 Posts: 512 Trader Rating: (4) Feedback Score: 4 reviews	mad dish yo! ...but the box and invoice both say KA24E so thats what ive got to go off of. the car is an E...owner had palns to turbo an E...everything points to E...so im pretty certian it is...but im no expert