Forester block - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

woode · 02-17-2014, 12:10 AM

Are the Forester and BRZ FA20 short blocks the same and/or interchangeable?

lbroskee · 02-17-2014, 12:57 AM

Quote:

Originally Posted by woode

Are the Forester and BRZ FA20 short blocks the same and/or interchangeable?

i don't see y not. from what i gather the only difference is internals and fuel injection

Fizz · 02-17-2014, 01:02 AM

Did you get daylight opening in your block?

1stGenBRZ86 · 02-17-2014, 01:03 AM

I believe someone on here actually had both blocks and said they are identical except for the starter location, or the forester lacking a starter.

Hawaiian · 02-17-2014, 01:15 AM

The top end of a FA20 will bolt directly to a FB25.

Fizz · 02-17-2014, 06:52 AM

Would the fb25 be a direct fit in the frs?

woode · 02-17-2014, 08:29 AM

Thanks guys

And, no, I didn't do anything to my engine! haha

I found a forester FA20 short block for $225 with a bad bearing that I am going to pick up and build

Fizz · 02-17-2014, 10:18 AM

That's a good deal...forged build?

woode · 02-17-2014, 12:17 PM

Quote:

Originally Posted by Fizz

That's a good deal...forged build?

Yup!

Basket Case · 02-17-2014, 01:03 PM

wow! I wish I could find something like that. That is a no brainer to pick up for that kind of money.

FAER · 02-18-2014, 06:22 AM

it won't work due to starter loction on the block, and the pistons don't work with our spray pattern..

so if you want a new crank and rods ... thats about all u can use..

woode · 02-18-2014, 07:30 AM

Quote:

Originally Posted by FAER

it won't work due to starter loction on the block, and the pistons don't work with our spray pattern..

so if you want a new crank and rods ... thats about all u can use..

Gotta rain on my parade! Well, maybe I'll still pick it up just to resell

Basket Case · 02-18-2014, 08:17 AM

Is the starter position so different that it won't fit int th car? If he is planning on building anyways it won't matter if the pistons are different.

SkAsphalt · 02-18-2014, 02:57 PM

Quote:

Originally Posted by woode

Thanks guys

And, no, I didn't do anything to my engine! haha

I found a forester FA20 short block for $225 with a bad bearing that I am going to pick up and build

That is such a ridiculous price. Bad bearing fixes for the win!

02-17-2014, 01:15 AM	#5
Hawaiian That guy Join Date: Feb 2012 Drives: Ultramarine mt FR-S Location: chicago Posts: 2,370 Thanks: 692 Thanked 1,389 Times in 730 Posts Mentioned: 71 Post(s) Tagged: 0 Thread(s)	The top end of a FA20 will bolt directly to a FB25. __________________ Ultramarine mt FR-S P&L stage 1 turbo Prime Motoring Flex fuel Jr Tuned 506whp @17psi (e73)

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02-17-2014, 01:02 AM	#3
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Did you get daylight opening in your block?

02-17-2014, 01:03 AM	#4
1stGenBRZ86 Senior Member Join Date: May 2013 Drives: 2013 BRZ Location: NYC Posts: 207 Thanks: 110 Thanked 58 Times in 35 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I believe someone on here actually had both blocks and said they are identical except for the starter location, or the forester lacking a starter.

02-17-2014, 06:52 AM	#6
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Would the fb25 be a direct fit in the frs?

02-17-2014, 10:18 AM	#8
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	That's a good deal...forged build?

02-17-2014, 01:03 PM	#10
Basket Case Senior Member Join Date: Jun 2013 Drives: 2013 Raven fr-s Location: Southwest Florida Posts: 450 Thanks: 193 Thanked 176 Times in 99 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	wow! I wish I could find something like that. That is a no brainer to pick up for that kind of money.

02-18-2014, 06:22 AM	#11
FAER Banned Join Date: Mar 2013 Drives: Silver BRZ Location: Texas Posts: 361 Thanks: 22 Thanked 118 Times in 86 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	it won't work due to starter loction on the block, and the pistons don't work with our spray pattern.. so if you want a new crank and rods ... thats about all u can use..

02-18-2014, 08:17 AM	#13
Basket Case Senior Member Join Date: Jun 2013 Drives: 2013 Raven fr-s Location: Southwest Florida Posts: 450 Thanks: 193 Thanked 176 Times in 99 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Is the starter position so different that it won't fit int th car? If he is planning on building anyways it won't matter if the pistons are different.

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