KA24E early 9.1:1 pistons - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

gripster · 02-19-2020, 02:51 AM

*** 9-9-20 Update ***

Building the engine for daily driver use and SCCA Solo II (autox) rules. As of today:

KA24E
Crank balanced
9.1:1 pistons from Traum Pistons
Cylinder head work by Rebello Racing

Questions:

Which head gasket do i get? What's better than Fel-Pro?

Head gasket bolts? Fel-Pro, Mahle, or ARP? Not exactly a high comp engine.

Which timing chain? Sealed power, Melling, or Cloyes?

*** /update ***

I'm getting a KA24E block rebuilt for my S13 and was looking for the early pistons with slightly higher 9.1:1 compression, part # 12010-40F10.

Late pistons were 8.6:1 compression.

As you can see, these early pistons are NLA/discontinued.

Link: http://datnissparts.com/x-flat-top-p...6-12010-40f10/

Did some digging and found this:

KA24 pistons in L28: https://www.classiczcars.com/forums/...istons-in-l28/

It mentions DNJ P616 flat top pistons.

Has anybody used the DNJ P616 pistons in a KA24E? Oversize also available.

I autox the car for fun and want to keep the sohc OE-spec in case i get competitive and people start protesting. ha ha. right.

Thanks for any input.

02-19-2020, 02:51 AM	#1
gripster Leaky Injector Join Date: Jun 2005 Location: dodging cones in DSP Age: 44 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	KA24E early 9.1:1 pistons * 9-9-20 Update * Building the engine for daily driver use and SCCA Solo II (autox) rules. As of today: KA24E Crank balanced 9.1:1 pistons from Traum Pistons Cylinder head work by Rebello Racing Questions: Which head gasket do i get? What's better than Fel-Pro? Head gasket bolts? Fel-Pro, Mahle, or ARP? Not exactly a high comp engine. Which timing chain? Sealed power, Melling, or Cloyes? * /update * I'm getting a KA24E block rebuilt for my S13 and was looking for the early pistons with slightly higher 9.1:1 compression, part # 12010-40F10. Late pistons were 8.6:1 compression. As you can see, these early pistons are NLA/discontinued. Link: http://datnissparts.com/x-flat-top-p...6-12010-40f10/ Did some digging and found this: KA24 pistons in L28: https://www.classiczcars.com/forums/...istons-in-l28/ It mentions DNJ P616 flat top pistons. Has anybody used the DNJ P616 pistons in a KA24E? Oversize also available. I autox the car for fun and want to keep the sohc OE-spec in case i get competitive and people start protesting. ha ha. right. Thanks for any input. __________________ 71, 72 Celicas; 85 AE88 hatch; 89 S13 hatch; 20 86TRD Last edited by gripster; 09-10-2020 at 12:26 AM.. Reason: Update w/ new Qs.