A question for you toyota guys - Toyota Nation Forum : Toyota Car and Truck Forums

TigerSilhouette · 07-14-2002, 07:35 PM

Hey everybody
I was wondering what the differences are between the 4-afe engine and the 7a-fe engine.(Other than the displacement). I'm asking this because i have a 93 Corolla. I paid for the 1.8 liter "package" which included the 1.8 liter engine. But the other day i looked under the hood and the label on the distributor said "4a-fe"??!!!
So to make a long story short...could the label on the distributor be wrong or was i totally jipped out of my money? Any help is appreciated

bondobondo · 07-14-2002, 07:46 PM

i think everything is pretty much similar,

if you wanted to really know, remove the engine, look at the fly wheel and see if it has 6 bolts or 8. if there are 8, its a 4a, if it has 6, it is a 7a.

or you could just look at the block, see if there is a marking where it mounts to the tranny, with a stamping if it says, 4a/7a, etc.

i think the dizzy's from both engines are the same.

4Aaron GE · 07-14-2002, 07:57 PM

I'm pretty sure that the engines share everything, except for the block, crank, rods, and maybe the pistons or headgasket too. The 7A-FE is basically a stroked version of the 4A-FE. Both of the flywheels are 6 bolt too.

bondobondo · 07-14-2002, 08:38 PM

arn't all 4a blocks sharing the same crank, hence the 8 bolt crank/flywheel?

i am sure the 7a is only 6blt.

TigerSilhouette · 07-14-2002, 09:17 PM

Thanks for the input guys......I think i really have a 1.6 liter....which pisses me off since i paid for the 1.8. I think i'll talk to the local Toyota dealership and try to sort it out.

Flashmn · 07-15-2002, 12:10 AM

I think the 1.8 has a taller block, atleast so I was told by my mechanic

XSPSI · 07-16-2002, 07:50 PM

The 7a-fe has a stronger block crankshaft, rods, and pistons than the 4a-fe. Couple people have succesfully swapped a 4a-ge head to the 7a block and were able to get significant gains in hp and tq. this cannot be done to the 4a-fe engine.

To answer your question just check your block for the engine code. both motors share many accessories. (You might have changed your distributor or cap and put a 4a-fe one on and not even realized it)

<font size=-1>[ This Message was edited by: xspsi on 2002-07-16 20:51 ]</font>