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Can I Use A BluePrint Engine Block In Stock, Super Stock, Or Comp Eliminator for NHRA?
Many racers ask whether a specific BluePrint Engine Block is approved for use in NHRA Stock, Super Stock, or Comp Eliminator competition. The answer depends on the exact BluePrint block part number. Some BluePrint blocks are approved for all NHRA classes, while others are approved for Stock, Super Stock, and Comp Eliminator only.
What Does NHRA Approval Mean?
An NHRA-approved BluePrint Engine Block has been reviewed and approved by the National Hot Rod Association for competition use in designated classes.
These approvals help ensure that the block complies with NHRA requirements and can be used without causing block-related compliance concerns.
What Is The Difference Between All Classes And Comp Approval?All Classes Approved
These blocks have been approved for use across NHRA competition classes.
Stock, Super Stock, And Comp Approved
These blocks have been approved specifically for:
- Stock Eliminator
- Super Stock
- Comp Eliminator
Always verify your exact block part number and racing class requirements before competition.
Small Block Chevy (SBC)
All Classes Approved
- BPP12110344
- BPP12110353
- BPP12110352
- BPP12110347
- BPP12110348
Stock, Super Stock, And Comp Approved
- BPP12110343
- BPP12110349
- BPP12110362
- BPP12110346
Big Block Chevy (BBC)
All Classes Approved
- BPP12110332
Stock, Super Stock, And Comp Approved
- BPP12110324
- BPP12110325
- BPP12110326
- BPP12110327
- BPP12110328
- BPP12110329
- BPP12110330
- BPP12110333
- BPP12110334
LS
All Classes Approved
- BPP12110350
- BPP12110351
- BPP12110356
- BPP12110357
- BPP12110358
- BPP12110359
Stock, Super Stock, And Comp Approved
- BPP12110360
- BPP12110361
Small Block Ford (SBF)
All Classes Approved
- BPP12110336
- BPP12110338
- BPP12110340
- BPP12110342
Stock, Super Stock, And Comp Approved
- BPP12110335
- BPP12110337
- BPP12110339
Why Is Class Approval Important?
Different NHRA classes have different rules regarding acceptable engine components.
Using an approved block helps ensure:
- Compliance with NHRA regulations
- Eligibility for competition
- Reduced risk of technical inspection issues
- Confidence when building a class-specific race engine
Frequently Asked Questions
Can I use an All Classes approved block in Comp Eliminator?
Yes. An All Classes approved block is also eligible for Comp Eliminator competition.
Can I use a Comp-approved-only block in every NHRA class?
No. Comp-approved blocks should only be used in the NHRA classes for which they are approved.
Where can I verify my block part number?
Your BluePrint block part number can be found on product documentation and block identification information.
Should I verify NHRA rules before racing?
Yes. Racers should always verify current NHRA requirements before competition.