more CC's for ya Age

[sundee]

so u hear many reference's within the 4(age) family.. mixing the 4a 16/20v heads with different a series blocks to gain more CC's.

ive just never understood all of the terms and what they relate to.

so we start with the base:

4ag - 1600cc..(15*^)
then - 7ag which is the 4a head on the 7afe block.. which just increases stroke
then u have an 8ag? and 8.5ag?

how many more cc's can u gain with the A series head's? and what blocks do they use? ideally not going to much out of square... aka to much stroke:bore

edit: here is a template so u can copy n paste it and fill out the info then ill edit this top post to compile all the info
(* = info still needed)

engine ref: (4a,5a,8a etc)
Block:
Crank:
Rods:
Pistons:
mods needed:
Cubic capacity:
Bore/Stroke:
Links:

engine ref: 4age ( factory specs)
Block: A series
Crank: N/A
Rods: N/A
Pistons: 81.00mm
mods needed: N/A
Cubic capacity: 1587cc
Bore/Stroke: 81.00mm/77.00mm
Links:

engine ref: 4.5ag
Block: A series
Crank: Standard
Rods:*
Pistons: CA18
mods needed: Bored ?
Cubic capacity: 1666cc
Bore/Stroke: *
Links:

engine ref: 5ag (HKS kit)
Block: A series (1587cc)
Crank: HKS stroker
Rods:*
Pistons: HKS 81.00mm (which was a must as the gudgeon pin height is different)
mods needed: Use of HKS crank needed the block ground away to handle the extra material on the crank webs
Cubic capacity: 1710cc
Bore/Stroke: 81.00mm/83.00mm
Links:


engine ref: 5.5ag (HKS kit) & (C.B.Y Kit)
Block: A series
Crank: HKS stroker
Rods:*
Pistons: CA18
mods needed:*
Cubic capacity: 1796cc
Bore/Stroke: 81.00mm/83.00mm
Links : C.B.Y


engine ref: 6ag (RS Yasu)
Block:*
Crank:*
Rods:*
Pistons:*
mods needed:*
Cubic capacity:*
Bore/Stroke:*
Links:

engine ref: 7ag
Block: 7a
Crank: 7a
Rods: *
Pistons:*
mods needed:*
Cubic capacity: 1762cc
Bore/Stroke:*
Links:

engine ref: 8ag
Block: 7a
Crank: 7a
Rods:*
Pistons: 83.00mm
mods needed:*
Cubic capacity: 1850cc
Bore/Stroke:*
Links:

engine ref: 8.5ag
Block:*
Crank:*
Rods:*
Pistons:*
mods needed:*
Cubic capacity:*
Bore/Stroke:*
Links:

engine ref: 9ag
Block:*
Crank: 2zz
Rods:*
Pistons:*
mods needed:*
Cubic capacity:*
Bore/Stroke:*
Links:

[Frak]

5ag was using HKS stroker crank which was 83.00mm stroke compared to 77.00mm stroke

capacity with recommended 81.00mm HKS piston(which was a must as the gudgeon pin height is different) was 1710cc

Use of HKS crank needed the block ground away to handle the extra material on the crank webs

[Frak]

5.5ag was HKS crank(83.00 stroke) and CA18 pistons.

capacity was 1796cc

[Frak]

6ag was something RS Yasu started.......have to find specs tho!

[Frak]

4.5ag was standard crank but ca18 pistons, capacity 1666cc
standard bore/stroke was 81.00 x 77.0 which gave 1587cc

[sundee]

well their is 3 more i had ahhh.. forgotten about..
for the money they would be asking for those kits.. i wouldnt think it would be worth the extra power and torque gained would it?

[Frak]

The HKS kit isn't just a crank BUT pistons also due to relocated piston pin position, the crank is no longer available but they still sell the pistons.

[sundee]

so the 7afe block gives u around 1800cc right?
how does that compare with the 8 and 8.5ag... what blocks are they using their?

[Frak]

8ag is 83mm piston with 7a crank/block, capacity 1850cc

standard 7a capacity 1762cc

[sundee]

hmmm now thats getting up their, any blocks that use a similar stroke to stock 77.00mm but have a larger capacity? what im trying to get at is, when u increase the stroke and make the engine less square is starts to loose its willingness to be rev happy..
it would be great to have the cubes but still a happy 9000rpm