Plazmaman Chevrolet Big Block - Billet Rocker Covers
Made To Order · 2–4 Week Lead TimeEach Plazmaman piece is CNC-machined to order in Australia. Plan on roughly 2–3 weeks from purchase to delivery (2–4 working day build + international shipping from AU).
CNC Billet Aluminium Rocker Covers — BBC — Show-quality billet aluminium rocker covers for the Chevrolet Big Block. CNC-machined to flat, lightweight, with -12AN breather port, billet fasteners, and an O-ring base for a 100% seal. Two heights
or as low as $88.80/mo with Affirm
Available
CNC Billet Aluminium Rocker Covers — BBC
CNC-machined 6061 billet aluminium — built to order in Australia
CNC Billet Aluminium Rocker Covers — BBC
Show-quality billet aluminium rocker covers for the Chevrolet Big Block. CNC-machined to flat, lightweight, with -12AN breather port, billet fasteners, and an O-ring base for a 100% seal. Two heights available — 3" for most builds, 3.5" for engines with stud girdles.
BUILT TO ORDER · SHIPS DIRECT FROM PLAZMAMAN AUSTRALIA · 2–4 WEEK LEAD TIME
What You Get
- 6061 T65 lightweight Billet aluminium construction.
- Comes supplied with fasteners.
- Will make a great addition to any show car engine bay
- Supplied with a Billet oil cap
- Your custom LOGO writing available at small extra cost – POA
On Paper
- Construction
- 6061-T6 Billet Aluminium (CNC)
- Compatibility
- Chevrolet Big Block (396 / 427 / 454 / 502 / 572)
- Finish Options
- Silver (machined) or Black (anodized)
- Heights
- 3″ Tall (most builds) or 3.5″ Tall (stud girdle clearance)
- Hardware
- Billet fasteners + billet oil cap incl.
- Origin
- Plazmaman, Wetherill Park, NSW (Australia)
- Weight / Dimensions
- 5 kg / 50 × 20 × 20 cm
Fitment Notes
Designed to bolt directly onto Chevrolet Big Block (396 / 427 / 454 / 502 / 572 / similar) factory rocker stud locations. Choose the 3.5" tall height if your build runs aftermarket rocker stud girdles. Comes with billet fasteners — no extra hardware required.
Made-to-Order Production
Each Plazmaman piece is CNC-machined to order at the Wetherill Park, NSW factory in Australia. Standard build time is 2–4 working days at the shop, plus international shipping. Plan on roughly 2–3 weeks from purchase to delivery. Anodized finish, custom injector configurations, and burst-panel lids are all built to order — non-cancellable once production starts.
About Plazmaman
Plazmaman is an Australian (Wetherill Park, NSW) CNC manufacturer specializing in billet intake manifolds, throttle bodies, and engine accessories for the LS, Coyote, Hemi, GT350, Camaro, and Corvette platforms. Their parts have set numerous land-speed and quarter-mile records, including Brett LaSala’s “Snot Rocket” Coyote Mustang. Each piece is built to order from raw 6061 stock at the same shop that builds for NHRA Pro Mod and Pro Stock customers worldwide.
FREQUENTLY ASKED QUESTIONS
You'll get an instant confirmation email with your part details and invoice. We source from a network of authorized suppliers across the country, so lead times vary by brand and part type — we'll send a tracking number the moment your parts move.
Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.
Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll check vendor stock direct and give you a straight answer.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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