Boss Mechanical & Performance

Boss Mechanical & Performance Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Boss Mechanical & Performance, Automotive Service, 2/13 speedwell Street Somerville, Melbourne.

LOG BOOK SERVICING
DYNO TUNING
MECHANICAL DIESEL TUNING
UNICHIP DEALER
AEROFLOW PARTS DEALER
ENGINE RECONDITIONING
BOTH PERFORMANCE PETROL AND DIESEL
ALL ASPECTS OF MECHANICAL REPAIRS

BOOKINGS UPDATE ๐ŸšจWe are officially BOOKED OUT FOR THE REST OF THE YEAR for major builds and engine reconditioning ๐Ÿ› ๏ธ๐Ÿ”ฅWeโ€™...
26/08/2026

BOOKINGS UPDATE ๐Ÿšจ

We are officially BOOKED OUT FOR THE REST OF THE YEAR for major builds and engine reconditioning ๐Ÿ› ๏ธ๐Ÿ”ฅ

Weโ€™ve got very limited spots available for tuning and minor servicing.

We simply canโ€™t be on the phone taking calls all day, so to help us keep the workshop moving, please send us a message through the business page or shoot us a text with:

Your name

A brief description of what youโ€™re after

Vehicle details if relevant

Weโ€™ll get back to you as soon as we can.

Being a 1 man band is hard to manage everything

A massive THANK YOU to all our loyal customers for the ongoing support. โค๏ธ

Without you guys, none of this would be possible.

Boss Mechanical & Performance

No gimmicks. Just a tough combo that performs..๐Ÿ”ฅ Boss built 427ci LS7 ๐Ÿ”ฅ TH400 + 5k converter๐Ÿ”ฅ 447rwkW (600hp) at the hub...
16/07/2026

No gimmicks. Just a tough combo that performs..

๐Ÿ”ฅ Boss built 427ci LS7
๐Ÿ”ฅ TH400 + 5k converter
๐Ÿ”ฅ 447rwkW (600hp) at the hubs revving to 7500 rpm
Running a off the shelf 1 3/4 header

Big thanks to Phil Genio for the complete plumbing of this car.

Willy's Drop Shop for the fabrication, engine install, and everything else that makes this car what it is today.

Race Wires front to back rewire with the haltech catalogue

Flash Panel & Paint for paint and body work it come up a treat ๐Ÿ’ช

I am proud to have this one representing the workshop.

Precision International
Nathan Higgins
Crow Cams Australia Pty Ltd
Speed Pro
Haltech

Had this immaculate hq in for a carby retune and check over. โ— 412 cube dart sbcโ— The first run how it arrived was 342kw...
17/03/2026

Had this immaculate hq in for a carby retune and check over.

โ— 412 cube dart sbc

โ— The first run how it arrived was 342kw

โ— We re jetted the carby and changed some timing and it resulted in 381kw on 98oct fuel.

What a car !!

๐Ÿ”ฅ VK BROCK BLUE MEANIE ๐Ÿ”ฅ We built a holden 355 making 300kw all under bonnet for this immaculate vk โ— S**t crank and rod...
27/01/2026

๐Ÿ”ฅ VK BROCK BLUE MEANIE ๐Ÿ”ฅ

We built a holden 355 making 300kw all under bonnet for this immaculate vk

โ— S**t crank and rods
โ— Forged flat top pistons
โ— Custom ground
โ— Johnson tie bar lifters
โ— Ported cylinder heads
โ— race kit

All the perfect combination for a street car on 98 Oct fuel

๐Ÿ”ฅ We finally had the chance to get the skyline on the dyno before summernats this year, and it did not disappoint. ๐Ÿ”ฅ Bos...
20/01/2026

๐Ÿ”ฅ We finally had the chance to get the skyline on the dyno before summernats this year, and it did not disappoint. ๐Ÿ”ฅ

Boss built 6.0 L77

We kept the standard stroke in this one as we planned on revving to 7800 to take full advantage of the high ram setup.

Forged rod and piston

Custom ground camshaft

Ls3 cnc ported heads

Twin e85 carbys

Pumped out 399kw at the hubs with a th400 and 9-inch diff

What a combo ๐Ÿ’ช

๐Ÿ”ฅ PHANTOM BLACK HARROP BLOWN VK CALAIS ๐Ÿ”ฅ We reckon we hit the nail on the head with this beauty. It has been a pleasure ...
18/01/2026

๐Ÿ”ฅ PHANTOM BLACK HARROP BLOWN VK CALAIS ๐Ÿ”ฅ

We reckon we hit the nail on the head with this beauty. It has been a pleasure helping our good customer build his dream vk.

416ci ls3 based block built in house

2650mk2 race port

Th400 3800 convertor

Custom twin 3-inch exhaust and intake pipe by only the best

r3 and uc10 dash all wired in by

Custom brake lines completed by

Tuned in house on a run in tune making 580kw ๐Ÿ‘Œ

Thanks to all who have been involved and helped getting this one over the line in such tight deadlines for

Tidy vz clubby we had the pleasure of completing for a great customer.Th400 conversion ๐Ÿ’ช3800 convertor ๐Ÿ‘€ Head and cammed...
11/12/2025

Tidy vz clubby we had the pleasure of completing for a great customer.

Th400 conversion ๐Ÿ’ช

3800 convertor ๐Ÿ‘€

Head and cammed 6.0 using a custom ground camshaft & cnc ported heads by

Full exhaust with 1 7/8 headers

ort and catchcan

3.9 diff ratio change with a trutrac centre

Custom dyno tune in house.

I can't wait until we get to put some boost into this combo to gain its maximum potential

Weโ€™re beyond busy and officially booked until February!But donโ€™t stress โ€” weโ€™ve still got a few spots left for tuning an...
11/11/2025

Weโ€™re beyond busy and officially booked until February!

But donโ€™t stress โ€” weโ€™ve still got a few spots left for tuning and for jobs weโ€™ve already discussed.

From now until then, weโ€™ll be running closed-door and by appointment only โ€” keeping the focus on quality work and loyal customers ๐Ÿ‘Š

We can't be on the phone taking calls all day so please message the buissness page or shoot us a text with your name a brief description of what you're after and we'll endeavour to get back to you.

Thanks to all our loyal customers for your ongoing support.
Without you guys, this wouldn't be possible

VF Maloo Build This one came together exactly how we wanted ๐Ÿ‘ŒThe Setup:๐Ÿ› ๏ธ Dart 427ci LS Next๐Ÿง  6-bolt heads๐Ÿ’จ Harrop 2650 ...
17/06/2025

VF Maloo Build

This one came together exactly how we wanted ๐Ÿ‘Œ

The Setup:

๐Ÿ› ๏ธ Dart 427ci LS Next
๐Ÿง  6-bolt heads
๐Ÿ’จ Harrop 2650 supercharger
โ›ฝ๏ธ E85 tuned
โš™๏ธ Manual trans
Triple plate clutch
Interchiller
1000hp fuel system
Gj drivelines one peice alloy tailshaft

Made a solid 1037.5hp to the hubs on the dyno with factory lsa ecu tuned in house here at boss โ€” smooth, responsive, and rowdy when you want it to be ๐Ÿ‘Š

Built for street and strip, but still cruisy enough to drive anywhere.

If you're chasing a setup like this, or want to talk builds โ€” hit us up ๐Ÿ‘‡

๐ŸŒฝ

Anyone after some grouse catering hit him up best in the business ๐Ÿ”ฅ
05/04/2025

Anyone after some grouse catering hit him up best in the business ๐Ÿ”ฅ

Thought it was time introduced myself,
(3 years later ๐Ÿคทโ€โ™‚๏ธ)

My name is Jason,
I'm a concreter from a small town called pearcedale in Melbourne's southeast.

I grew a passion for cooking, living out of home from a young age with my partner and our
daughter,
watching the respect given to those who could knock out a good feed and the way they're loved by their families and communities was something i longed for.
Plus, being obsessed with flavour is also something that has driven me to become a successful cook.
Growing up camping around the Victorian high country cooking with fire was sometimes the only option and a true art within itself.

Bbq Catering is something I accidentally fell into after a few family cook ups and some good positive feedback from the right people, Anything is possible.

Every single time I light the fire, I learn something new ,whether it's about cooking or something about myself.

I strive to level up and change the game every time I do i function ,growth is the overall key to success.

Thank you ๐Ÿ˜Š
Jase ๐Ÿป

Address

2/13 Speedwell Street Somerville
Melbourne, VIC
3912

Telephone

+61455226911

Website

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