GZE vz 7 rib

Capt.Evergreen · 05-04-2009, 12:18 PM

are the internals the same.... aside from compression and a SC.... are crank to piston heads the same????
thanks
Capt. EverGreen

toyotaspeed90 · 05-04-2009, 07:55 PM

as I said in the other one.... no

the early 7 ribs have the connections for squirters but doesn't use them.

rods are different (slightly)

heads are the same for the most part (you could use either on either.... IIRC there's a slight casting difference but it's negligible).

pistons are what make the compression be different -- the 4agze pistons have a top ceramic coating.

I've used this photo time and time again....

you can see the piston in the middle has a different color on the top than the skirt, which isn't there for the other 2 (both n/a's).

Papo J · 05-05-2009, 01:18 PM

Toyotaspeed90, are you in the US?

toyotaspeed90 · 05-05-2009, 03:47 PM

yes, middle piston is an ae101 4agze, however.

left to right:

87 bigport 4age, late model ae101 smallport 4agze, early smallport 4age n/a

Capt.Evergreen · 05-06-2009, 10:48 AM

so u can turbo a 7 rib w/ lower comp head gasket... and run like the gze??? i swaped a low mile 7 rib last year.... and was thinken to turbo a 4agze, so thank u for saven me money...
so im thinken bearings, rod pins, meatle HG, arp studs... and done for bottom end maybe piston rings....
Capt.EverGreen

toyotaspeed90 · 05-06-2009, 11:20 AM

the gze's pistons are forged plus have a ceramic coating...... much stronger for boost than the n/a pistons... however, you can boost n/a pistons (just won't be as reliable).

mr2tim · 05-06-2009, 12:43 PM

Let's not forget THE most important item, the crankshaft is also forged in the Supercharger and not cast. mr2tim

te51levin · 05-06-2009, 02:09 PM

Sounds like somebody gave you some bad information.

There is no difference between '88+ NA and SC cranks. All 4AGE versions used the same crankshaft 1988 model year through the end of the 1991 model year. The part number is 13401-16020, regardless of whether it's naturally aspirated or supercharged.

toyotaspeed90 · 05-06-2009, 02:57 PM

^^^ yes, that is true. All 42mm journal 4ag(z)e cranks are the same -- well balanced and forged from the factory....

what I would be more intrigued to find out is if the late model (42mm journal) 4afe cranks are the same PN or not from Toyota.... it's been rumored that they're the same and it's also been rumored that they aren't

05-04-2009, 12:18 PM	#1 (permalink)
Capt.Evergreen that guy Join Date: Apr 2008 Location: ATL GA Posts: 439 Thanks: 2 Thanked 1 Time in 1 Post iTrader Rating: (0/100% )	GZE vz 7 rib are the internals the same.... aside from compression and a SC.... are crank to piston heads the same???? thanks Capt. EverGreen

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05-04-2009, 07:55 PM	#2 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,401 Thanks: 0 Thanked 148 Times in 143 Posts My Google Map iTrader Rating: (0/0% )	as I said in the other one.... no the early 7 ribs have the connections for squirters but doesn't use them. rods are different (slightly) heads are the same for the most part (you could use either on either.... IIRC there's a slight casting difference but it's negligible). pistons are what make the compression be different -- the 4agze pistons have a top ceramic coating. I've used this photo time and time again.... you can see the piston in the middle has a different color on the top than the skirt, which isn't there for the other 2 (both n/a's).

05-05-2009, 01:18 PM	#3 (permalink)
Papo J 6SPD GTE Join Date: Sep 2006 Posts: 588 Thanks: 2 Thanked 50 Times in 49 Posts iTrader Rating: (0/0% )	Toyotaspeed90, are you in the US?

05-05-2009, 03:47 PM	#4 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,401 Thanks: 0 Thanked 148 Times in 143 Posts My Google Map iTrader Rating: (0/0% )	yes, middle piston is an ae101 4agze, however. left to right: 87 bigport 4age, late model ae101 smallport 4agze, early smallport 4age n/a

05-06-2009, 10:48 AM	#5 (permalink)
Capt.Evergreen that guy Join Date: Apr 2008 Location: ATL GA Posts: 439 Thanks: 2 Thanked 1 Time in 1 Post iTrader Rating: (0/100% )	so u can turbo a 7 rib w/ lower comp head gasket... and run like the gze??? i swaped a low mile 7 rib last year.... and was thinken to turbo a 4agze, so thank u for saven me money... so im thinken bearings, rod pins, meatle HG, arp studs... and done for bottom end maybe piston rings.... Capt.EverGreen

05-06-2009, 11:20 AM	#6 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,401 Thanks: 0 Thanked 148 Times in 143 Posts My Google Map iTrader Rating: (0/0% )	the gze's pistons are forged plus have a ceramic coating...... much stronger for boost than the n/a pistons... however, you can boost n/a pistons (just won't be as reliable).

05-06-2009, 12:43 PM	#7 (permalink)
mr2tim SUPERcharZed ToyZ RacZer Join Date: Mar 2008 Location: South Florida Posts: 1,789 Thanks: 8 Thanked 118 Times in 111 Posts My Google Map iTrader Rating: (6/100% )	Let's not forget THE most important item, the crankshaft is also forged in the Supercharger and not cast. mr2tim

05-06-2009, 02:09 PM	#8 (permalink)
te51levin LithiaToyotaParts.com Join Date: Oct 2005 Location: Copperhead Road Posts: 3,683 Thanks: 50 Thanked 323 Times in 267 Posts My Google Map iTrader Rating: (193/100% )	Sounds like somebody gave you some bad information. There is no difference between '88+ NA and SC cranks. All 4AGE versions used the same crankshaft 1988 model year through the end of the 1991 model year. The part number is 13401-16020, regardless of whether it's naturally aspirated or supercharged.

05-06-2009, 02:57 PM	#9 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,401 Thanks: 0 Thanked 148 Times in 143 Posts My Google Map iTrader Rating: (0/0% )	^^^ yes, that is true. All 42mm journal 4ag(z)e cranks are the same -- well balanced and forged from the factory.... what I would be more intrigued to find out is if the late model (42mm journal) 4afe cranks are the same PN or not from Toyota.... it's been rumored that they're the same and it's also been rumored that they aren't