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Home > Products > Superplate High HP Flexplates

Superplate® High HP Flexplate
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Coming soon! 166 tooth flexplates to fit all popular size SFI 6.3 spec cans!
  In ATI’s tradition of staying ahead of rampant increases in HP, which are commonplace in the performance industry today, ATI has developed the Superplate flexplate.

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.

Starters for ATI Flexplates

Crank Adapters for Extra Thick Midplates

General Motors - For internally balanced engines

APPLICATION
PART #
ENGINE GROUP
BOLT SIZE
TEETH
PRICE
Chevy SB - High HP - standard holes
915544
Chevy V8
168
$242.00
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal crank flange
915554
Chevy V8
7/16"
168
$289.00
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal crank flange
915555*
Chevy V8
7/16"
139 - 10DP
$299.00
6 Bolt Crank - SBC & BBC V8 with
2-piece rear seal crank flange
915548
Chevy V8
1/2"
168
$299.00
6 Bolt Crank - Chevy 2-piece rear seal crank flange crank flange
915556*
Chevy V8
1/2"
139 - 10DP
$289.00
Chevy - with aftermarket crank with 8-bolt Chrysler flange
915547
Chevy V8
1/2"
168
$299.00
Chevy - with aftermarket crank with 8-bolt Chrysler flange
915557*
Chevy V8
1/2"
139 - 10DP
$299.00
* needs special starter

Chrysler V8 - For internally balanced engines

APPLICATION
PART #
ENGINE GROUP
BOLT SIZE
TEETH
PRICE
6 Bolt Crank
915558
Chrysler V8
1/2"
130
$299.00
8 Bolt Crank
915549
Chrysler V8
1/2"
130
$299.00
8 Bolt Crank (Chevy starter)
915547 [1]
Chrysler V8
1/2"
168
$299.00
8 Bolt Crank (relocate starter)
915557 [1]
Chrysler V8
1/2"
139 - 10DP
$299.00
[1] Fits Chevy motors with aftermarket crank with 8-bolt Chrysler flange
 
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