Valves, engine, intake and exhaust, manufacturing · North Carolina

Holley Inc. - Detroit Speed

Mooresville, NC · ~50 workers · 3 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.9
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

Holley Inc. - Detroit Speed runs at 35% of its industry's injury rate - far safer than the typical Valves, engine, intake and exhaust, manufacturing workplace, earning a grade A.

Holley Inc. - Detroit Speed: 1.9 TCR = 35% of Valves, engine, intake and exhaust, manufacturing BLS 5.4 · 3y Form 300A (see methodology below)

Holley Inc. - Detroit Speed safety composite

Holley Inc. - Detroit Speed scores strongest on total case rate (tcr) (safer than 70% of same-industry peers) and weakest on dart rate (safer than 38%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.91 per 100 workers

Safer than 70% of industry peers

DART rate
D 2.02 per 100 workers

Safer than 38% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Holley Inc. - Detroit Speed: 0.0 → 2.0 TCR

Peak year 2023 @ 3.7 TCR · DART/TCR 1.06× in 2024

Holley Inc. - Detroit Speed's TCR rose 2.0 from 0.0 in 2022 to 2.0 in 2024. Peak filing year was 2023 at 3.7 TCR. In 2024, DART was 1.06× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336310 · Mooresville, NC AT/BELOW-IND · SMALL

Grade A · TCR 1.9 · 35% of ind

  • DART 2.0 DART
  • RANK #3/9
  • PHOTO Stanadyne LLC
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~50 FTE

Nearest TCR peer: Stanadyne LLC (0.0 TCR gap)

Read with this employer → · Industry book → · North Carolina employers → · Look up another →

Holley Inc. - Detroit Speed in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Holley Inc. - Detroit Speed averages 1.9 TCR (35% of the Valves, engine, intake and exhaust, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Holley Inc. - Detroit Speed TCR series: 2022=0 · 2023=3.7 · 2024=2 · BLS 5.4

Where Holley Inc. - Detroit Speed falls in its industry

221 Valves, engine, intake and exh establishments

Safer than 70% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to North Carolina alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 9 Valves, engine, intake and exh employers in North Carolina.

Holley Inc. - Detroit Speed (50 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 02004006008001,000 05101520 Average employees Total Case Rate Holley Inc. - Detroit Speed
Holley Inc. - Detroit Speed (50 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

Holley Inc. - Detroit Speed has fewer employees than the Valves, engine, intake and exhaust, manu median and a lower injury rate than the industry's median TCR of 2.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 2.0 2.0 1 0 0
2023 3.7 0.0 2 0 0
2022 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · NC · Mooresville

221 Valves, engine, intake and exhaust, manufacturing employers nationwide with a credible TCR · 16,981 rated employers in North Carolina with headcount on file · 161 employers in Mooresville, NC · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Stanadyne LLC 1.9 TCR
NAICS-TCR MAHLE Engine Components USA, Inc. 1.9 TCR
NAICS-TCR CP-CARRILLO, INC. 1.9 TCR
NAICS-TCR Mercury Marine Plant 36 (Racing) - Taycheedah, WI 1.9 TCR
STATE-SIZE Terrell and Johnny Williams 50 FTE
STATE-SIZE Wadesboro Hatchery / Transp 50 FTE
STATE-SIZE Northern Region Office (Cary) 50 FTE
STATE-SIZE WEMC - Youngsville 50 FTE
CITY-NEAR Mooresville Graded School District 886 FTE
CITY-NEAR NGK Ceramics USA, Inc. 769 FTE
CITY-NEAR BestCo LLC 761 FTE
CITY-NEAR POWERHOME SOLAR 655 FTE
NAT-TCR Scott County Public Works (includes Belle Plaine Shop) 1.9 TCR
NAT-TCR HeritageDistilling Distribution Warehouse 1.9 TCR
NAT-TCR MBDA Incorporated - Huntsville 1.9 TCR
NAT-TCR Nashville Machine Company, Inc. 1.9 TCR
NAT-SIZE Future Foam Inc. 50 FTE
NAT-SIZE Popular Design Mill & Cabinet, Inc 50 FTE
NAT-SIZE Birla Carbon USA Hickok Plant 50 FTE
NAT-SIZE Elite Booth LLC 50 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.