Superplate Flexplates
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Superplates are manufactured
from a super-strong material with a 90,000 lbs. tensile
strength and 80,000 lbs. yield strength to withstand thousands
of cycles. Superplates are laser machined to avoid the
heat and stress stamping inflicts on them. The crank bolt
holes are bored in position to exacting tolerances in
both size and location on CNC machines. The Superplate
uses the "grip length" of the 6 or 8 crank bolts
as dowels to prevent the plate from moving under high
torque conditions.
Unlike "billet plates" that violate the "flex
principle" of a flexplate, the Superplate flexes
like OEM plates are designed to do, absorbing the numerous
machining tolerances that exist in our "non exact"
world.
ATI Superplates are neutral balanced for use
in internally balanced engines and exceed SFI 29.1 &
29.2 ratings.
Flexplate shields
Starters for ATI Flexplates
Crank Adapters for Extra
Thick Midplates |
|
General Motors - For internally balanced
engines
| APPLICATION |
PART
NUMBER |
ENGINE
GROUP |
BOLT
SIZE |
TEETH |
PRICE |
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal |
915554 |
Chevy V8 |
7/16" |
168 |
$339.95 |
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal |
915555 |
Chevy V8 |
7/16" |
139 |
$339.95 |
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal |
915548 |
Chevy V8 |
1/2" |
168 |
$339.95 |
| 6 Bolt Crank - Chevy |
915556 |
Chevy V8 |
1/2" |
139 - 10DP |
$339.95 |
Chrysler V8 - For internally
balanced engines
| APPLICATION |
PART
NUMBER |
ENGINE
GROUP |
BOLT
SIZE |
TEETH |
PRICE |
| 8 Bolt Crank |
915558 |
Chrysler V8 |
1/2" |
130 |
$339.95 |
| 8 Bolt Crank |
915549 |
Chrysler V8 |
1/2" |
130 |
$339.95 |
| 8 Bolt Crank (Chevy starter) |
915547 [1] |
Chrysler V8 |
1/2" |
168 |
$339.95 |
| 8 Bolt Crank (relocate starter) |
915557 [1] |
Chrysler V8 |
1/2" |
139 - 10DP |
$339.95 |
|
[1] Fits Chevy
motors with aftermarket crank with 8-bolt Chrysler flange
SFI Flexplates
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ATI Flexplates are created from custom drawn
SFI-spec chromoloy steel and are SFI 29.1 Certified.
The flexplates are double MIG/TIG welded for additional
strength and lasting precision pass after pass. Each ATI
flexplate is manufactured and toleranced from OEM drawings
to ensure a precise fit and location.
Each plate is quality inspected to EXCEED the flatness
and run-out tolerances of the OEM units and is precision
balanced on Hines digital equipment with a resolution
of 0.10 oz-in.
Flexplate
shields |
|
General Motors
| APPLICATION |
ENGINE
GROUP |
TEETH |
INT.
BALANCE |
PRICE |
EXT.
BALANCE |
PRICE |
Chevrolet
late model
bolt-on crankshaft flange
'86 and up one-piece seal |
305
/ 350 |
153 |
915533 |
$199.95 |
915532 |
$239.95 |
168 |
915534 |
$199.95 |
915535 |
$229.95 |
| Chevrolet
V8 Small Block |
283
/ 302 / 327 / 350
Early 2 Piece Seal |
153 |
915539 |
$229.95 |
-- |
-- |
168 |
915541 |
$195.95 |
-- |
-- |
High
HP / Pro Mod
SFI Spec 29.2 |
168 |
915544 |
$219.95 |
-- |
-- |
10
DP |
139 |
915545
[2] |
$275.95 |
-- |
-- |
400 |
168 |
-- |
-- |
915561 |
$229.95 |
LS1
- F Body (Race only) |
168 |
915537
[8] |
$289.95 |
-- |
-- |
LSA
/ LSX |
168 |
915733
[11] |
$229.95 |
-- |
-- |
| Chevrolet
V8 Big Block |
'70
- '90 454
454 / 502 Mark IV |
168 |
915541
or 915542 |
$195
or $246 |
915551 |
$229.95 |
'91
& up
Gen V 454 [3] |
168 |
915541
or 915542 |
$195
or $246 |
915553 |
$229.95 |
'91
& up [4] 572
Gen V - 454 HO / 502 HO |
168 |
915541
or 915542 |
$195
or $246 |
915552 |
$229.95 |
| Oldsmobile |
'64 - '67 V8
300 / 400 / 425 |
166 |
915562 |
$274.95 |
915563 |
$294.95 |
| Oldsmobile |
All V8 including
Diesel |
166 |
915564 |
$229.95 |
915565 [5] |
$249.95 |
| Pontiac V8 |
400 / 455 |
166 |
915567 |
$209.95 |
915568 [6] |
$234.76 |
Chrysler V8 - with ATI Adapters
to GM Powerglide, TH350 & TH400 Transmissions
| APPLICATION |
ENGINE
GROUP |
TEETH |
INT.
BALANCE |
PRICE |
EXT.
BALANCE |
PRICE |
| 6 Bolt Crank |
All wedges |
130 |
915650X [10] |
$234.76 |
-- |
-- |
'71 - '92 360 |
130 |
-- |
-- |
915662 |
$229.95 |
| 8 Bolt Crank |
HEMI |
130 |
915660X [10] |
$234.76 |
-- |
-- |
Chrysler V8
| APPLICATION |
ENGINE
GROUP |
INT.
BALANCE |
PRICE |
EXT.
BALANCE |
PRICE |
| '05 - '07 300C, Charger & Magnum |
5.7L & 6.1L
|
915663 |
$189.00 |
-- |
-- |
| '05 - '07 Jeep Grand Cherokee [9] |
3.7L & 6.1L
-- NOT 5.7L |
915663 |
$189.00 |
-- |
-- |
- All external balance flexplates must be on the crank for
balancing or match-balanced to the unit that was originally
balanced with the crank.
- Special starter required. Order pt.# 915546.
- Cast crank only - 41.95 oz. in.
- Forged crank only - 42.54 oz. in.
- 25.0 oz in
- No weight. Imbalance is accomplished by lightening one
side of the flexplate.
- ATI Chrysler adapter flexplates require the use of 10
3/4” bolt circle only with GM converters.
- LS1 flexplate sold only as a kit. Includes flexplate,
crank adapter and bolts. Requires a custom aftermarket converter.
- Does not fi t 5.7L Jeep Grand Cherokee. OEM converter
bolt holes require longer bolts - included.
- Replacement parts: Be sure to specify the date of original
order. Parts shipped prior to January 2007 have different
dimensions
and part numbers (non-X numbers).
- Requires Chevy Crank Adapter P/N 915598
Ford
ATI flexplates fit aftermarket converters only. Ford Flexplate
kits include flexplate, CNC-machined crank piloted spacer
and crank bolts. Ford flexplates with 164 teeth have an
11-7/16” bolt circle, and flexplates with 157 teeth
have a 10-1/2” bolt circle for Ford converters. Both
have factory installed 10-3/4” & 11-1/2”
bolt circles for GM converters but only the 10-3/4”
bolt circle is usable for the 157 tooth flexplates due
to ring gear interference. ATI Ford Flexplates are flat.
They will accommodate ONLY converters where the drive
pad is ABOVE the converter body. |
|
915722 - Flexplate, spacer & crank
bolts |
| ENGINE |
TRANS |
TEETH |
INT.
BALANCE |
PRICE |
EXT.
BALANCE |
PRICE |
| 429 / 460 |
C6 - E4OD |
164 |
915720 |
$289.95 |
915721 [1] |
$289.95 |
| FE 332 / 428 |
C6 - E4OD |
184 |
915722 |
$289.95 |
915723 [2] |
$289.95 |
| 289 / 302 / 351 / 400 |
C6 - E4OD |
164 |
915724 |
$289.95 |
915725 [3] |
$289.95 |
| 289 / 302 / 351 / 400 |
C4 - AOD |
164 |
915727 |
$289.95 |
915728 [3]
915729 [4] |
$289.95
$229.95 |
| 289 / 302 |
C4 |
157 |
915730 |
$229.95 |
915731 [3]
915732 [4] |
$229.95
$229.95 |
- 24 oz. in. - 460 truck only with D9TP-6375-AA or E7TP-6375-AA
OEM flexplates.
- 28.8 oz. in. OEM flexplate. Weight is 5 1/8” x
5/8” x 5/16” thick.
- 28.2 oz. in. All 289-351C-351W- 400 and 302 through 1980.
OEM flexplate is 4 1/4” x 3/4” x 3/8”
thick.
- 50.0 oz. in. ‘81 & up 5.0 L only. OEM flexplate
weight is 4 1/4”x 7/8” x 7/16” thick.
Flexplate Hardware Kits
| Flexplate
Bolts |
Part
Number |
Price |
| FORD 289-302-351 ALL 400-C6 / 400 164
TEETH |
950142 |
$14.16
|
| FORD 289-302HO-351 ALL 400-C6 / 400
164 & 157 TEETH |
950143 |
$16.00
|
| FORD MOD AND LATE HEMI |
950144 |
$13.44
|
| FORD |
950163 |
$14.16 |
LATE MODEL HEMI 8 BOLT - 10MM X 1.00
X 20MM, CLASS 10.9 - (Pack of 8)
|
951372-8 |
$45.00 |
CHEVY 7/16-20 X 11/16"
|
950260 |
$24.72 |
| Flexplate
Hardware - High HP use
with ATI flexplate and crank adapter |
Part
Number |
Price |
MOPAR (Except HEMI) & FORD SB 7/16
- 20 X 1 1/4”, .700 GRIP, 12 PT (Pack of 6)
|
951034-6 |
$46.00
|
| MOPAR HEMI 1/2 - 20 X 1-1/4”,
.700 GRIP, 12 PT (Pack of 8) |
951035-8 |
$64.00
|
| CHEVY 1/2 - 20 X 1-1/4”, .700
GRIP, 12 PT (Pack of 6) |
951035-6 |
$48.00
|
| FORD 429-460 7/16 - 20 X 1”, .200
GRIP, 12 PT (Pack of 6) |
951036-6 |
$20.00
|
FORD MOD MOTORS & NEW GEN HEMI
- M10 X 1.0 X 30MM, .300 GRIP, 12 PT (Pack of 8)
|
951037-8 |
$36.00
|
| Flexplate
Hardware - Flexplate to
crank for use with midplate |
Part
Number |
Price |
7/16 - 20 X 1-3/32 (Must use #951000
adapter) (Pack of 6)
|
951062-6 |
$40.00
|
| 1/2 - 20 X 1-3/32 (Must use #951001
adapter) (Pack of 6) |
951063-6 |
$40.00
|
| Flexplate
Hardware - High HP use
without crank adapter |
Part
Number |
Price |
| FLEXPLATE TO CRANK 1/2 - 20 x 7/8”
- Pack of 6 |
951057-6 |
$40.00 |
| FLEXPLATE TO CRANK 1/2 - 20 x 7/8”
- Pack of 8 |
951057-8 |
$45.00
|
| FLEXPLATE TO CRANK 1/2 - 20 x 1”
- ,450 GRIP - 12 PT EXTREME DUTY - Pack of 8 |
951059-8 |
$48.00
|
| WITH HD MACHINED ON-SIZE FLEXPLATES
1/2 - 20 x 13/16” - Pack of 6 |
951058-6 |
$40.00 |
| WITH HD MACHINED ON-SIZE FLEXPLATES
1/2 - 20 x 13/16” - Pack of 8 |
951058-8 |
$45.00
|
WITH HD MACHINED ON-SIZE FLEXPLATES
7/16 - 20 x 11/16” - Pack of 6
|
951479-6 |
$40.00
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