[alfsentra]

I plan use E16 rods with Datsun A14 pistons into a GA16 block. I used GA rods + GA pistons into E16 block for high comp aplication. The detail is E16 rod is more short and large and the GA rod is more long and small. This variaton on the rods cause changes into engine cc's or is more dificulty for the engine move this rods + pistons or anything? The A14 piston is more long and the GA pistons is more short, the same bore diameter (76mm) This is for a N/A high comp aplication 8,000 - 8,200 rpm's. I use in old setup a14 modified pistons with modified GA rods in the pin bushing, into GA16 block.

Thanks!

 

[alfsentra]

Possible change the engine stroke?

 

[IanH]

Engine stroke wont change unless you change the crank or re-grind on different centers.
You are changing the compression height...
Do you have dimensions / drawing you can post ?

 

[alfsentra]

Pics:
E16 block with GA rod + piston VS. Reagular E16 rod + piston

 

[IanH]

So the new shiny one is the GA ?
I don't see a compression height change, only that the pistons have different dish and dish volume.
Do you know the volumes ?
I also would guess the E is a non-interference design, and we know the GA is an interference design.

 

[alfsentra]

This E16 engine work with GA rods and pistons, i built this engine maybe 3 years ago with GA rods & pistons, custom 280' cam, Twin 40mm carbs. This setup put 210 psi of compression with stock headgasket & little shave on the head, rev 7,500 rpm's. My point is: the E16 rods is more large vs. GA rod is more small. In my conclusion maybe the E rod support more revs, almost 8.5k is the limit for this rod with custom ARP bolts. My plan is rev 8.2k on my GA with E rod. At the moment my GA rev 7.5k with GA rod and custom 11.0:1 piston. I built my GA engine 2.5 year ago.

 

[sonicgundam]

what he means is that the E16 rods are THICKER but the are also SHORTER than the GA16DE rods.

beyondbiscuits is looking at using E16 rods with GA pistons ins his GA16DE for boosting.

alf, rather than use E16 rods, use GA16i rods. they are much beefier than GA16DE rods, but you don't lose as much compression.