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High Tensile Strength Black Bolts

Kustom Bitz Blackz are for those on a tight budget and are looking for standard engine or body replacement bolts to help you with your rebuild. For example we have water pump kits for those who are replacing water pumps on your engine and find that once you get it apart that the OEM bolts have partly rusted away.

Our black bolt engine kits are supplied with hex socket cap screws for all the small rocker cover and sump bolts. Click on the photos below to see a larger version.  The photos are of a small block chev engine put togther using a Kustom Bitz Blackz tight wad bolt kit.

 

KustomBitz also has our Combo'z range which are combo bolt kits that have black bolts and polished stainless steel bolts in the kit.  For example you may be painting your engine once assembled so you really only need our standard engine replacement high tensile black bolts, however you have really cool polished valve covers to bolt on which would look great with polished stainless steel valve cover bolts. Or you may have a polished inlet manifold or one of those cool new ceramic coated inlet manifolds, then we a have a combo kit that has polished stainless for the shiny parts and plain black bolts for the parts you are going to paint. This will keep your budget in check, yet allow you to use the best polished finish on a bolt you can buy for your engine.


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NPT Plugs
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Tight Wad Bolts Black

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Holden V8 Bolt Kit - complete engine late 308 VN style heads [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$148.00
Holden V8 Bolt Kit - complete engine early 308 style heads & Edelbrock inlet manifold [Black Bolts, Zinc for Intake & Polished SS Button Heads for VC]
Holden 253, 308 V8 black bolt kit & Polished Stainless Steel Valve Covers [Polished] - Combo'z hex heads & Button Heads
$154.68
Holden V8 Bolt Kit - Intake Manifold bolts only to suit Edelbrock Performer or Torquer [KustomBitz Silverz]
Holden 253, 308 V8 high tensile Zinc bolt kit - Hex slot socket caps
$40.00
Holden V8 Bolt Kit - Intake Manifold bolts only to suit the Torque Power [KustomBitz Silverz]
Holden 253, 308 V8 high tensile Zinc bolt kit - Hex slot socket caps
$40.00
Speed Nuts 5/16 UNC thread - J Nut fastener for body Panels Black mild steel - Ford Style
Speed Nuts to suit Holden, Chev, Ford, Chrysler, Valiant,
$1.04
Speed Nuts 5/16 UNC thread - J Nut fastener for body Panels Black mild steel - Holden Style
Speed Nuts to suit Holden, Chev, Ford, Chrysler, Valiant,
$1.04
Holden V8 Bolt Kit - Water Pump & Timing Cover bolts only Black engine bolts [KustomBitz Blackz]
Holden 253, 308, 304 [VN onwards] V8 Black Engine Bolts Grade 5 - Tight Wad Range
$40.00
Holden V8 Bolt Kit - Oil Pan Sump bolts Only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads & zinc socket caps
$25.00
Holden V8 Bolt Kit - complete engine early 308 heads [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$138.00
Holden V8 Bolt Kit - complete engine early 308 style heads [Black Bolts & Polished SS Button Heads for VC]
Holden 253, 308 V8 black bolt kit & Polished Stainless Steel Valve Covers [Polished] - Combo'z hex heads & Button Heads
$154.53
Holden V8 Bolt Kit - complete engine [Black Bolts & Mirror Topz for INT&EX]
Holden 253, 308 V8 black bolt kit & Polished Stainless Steel for Intake, Headers & Valve Covers [Polished] - Combo'z Mirror Topz & Button Heads
$351.36
Chevy Bolt Kit - Exhaust Headers - extractor bolts [Black Bolts]
Small block Chev standard grade 5 black engine bolts hex head
$30.00
Chevy Bolt Kit - Exhaust Rams Horns [Black Bolts]
Small block Chev standard grade 5 black engine bolts hex head
$30.00
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Complete replacement standard black engine bolts [Blackz]
Red, Black, Blue motors - All external engine bolts. Plain Grade 5 high tensile replacement black bolts
$145.00
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Complete replacement std black engine bolts & polished stainless button heads for valve cover [Combo'z]
Red, Black, Blue motors - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & Shiny stainless steel.
$159.00
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Complete replacement std black engine bolts & polished stainless button heads for valve cover & inlet manifold [Combo'z]
Red, Black, Blue motors - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & Shiny stainless steel.
$175.37
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Complete replacement std black engine bolts & polished stainless button heads for valve cover, side plates & inlet manifold [Combo'z]
Red, Black, Blue motors - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & Shiny stainless steel.
$227.79
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Water Pump standard black engine bolts [Blackz]
Red, Black, Blue motors - Plain Grade 5 high tensile replacement black bolts
$15.00
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Water Neck Housing standard black engine bolts [Blackz]
Red, Black, Blue motors - Plain Grade 5 high tensile replacement black bolts
$15.00
Holden 6 Cyl Bolt Kit 186 & 202 Bolt Kit - Water Neck standard black engine bolts [Blackz]
Red, Black, Blue motors - Plain Grade 5 high tensile replacement black bolts
$15.00
Ford Windsor V8 Bolt Kit - Complete replacement standard black engine bolts [Blackz]
Ford 289, 302, 351 Windsor - All external engine bolts. Plain Grade 5 high tensile replacement black bolts
$125.00
Ford Windsor V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless button heads for valve covers [Combo'z]
Ford 289, 302, 351 Windsor - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$150.32
Ford Windsor V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless button heads for valve covers & intake manifold [Combo'z]
Ford 289, 302, 351 Windsor - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$128.18
Ford Windsor V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless button heads for valve covers & Mirror topz for intake manifold and headers [Combo'z]
Ford 289, 302, 351 Windsor - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$305.00
Ford Cleveland V8 Bolt Kit - Complete replacement standard black engine bolts [Blackz]
Ford 302, 351 Cleveland - All external engine bolts. Plain Grade 5 high tensile replacement black bolts
$130.00
Ford Cleveland V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless button heads for valve covers [Combo'z]
Ford 302, 351 Cleveland - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$150.26
Ford Cleveland V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless hex socket heads for valve covers & intake manifold [Combo'z]
Ford 302, 351 Cleveland - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$245.51
Ford Cleveland V8 Bolt Kit - Complete replacement standard black engine bolts & polished stainless button heads for valve covers & Mirror topz for intake manifold and headers [Combo'z]
Ford 302, 351 Cleveland - All external engine bolts. Plain Grade 5 high tensile replacement black bolts & shiny stainless steel
$306.67
Chev small block V8 Bolt Kit - complete engine [Black Bolts]
Chevy 283, 307, 350, 400, V8 high tensile black bolt kit [direct replacement] - hex heads
$109.00
Chev small block V8 Bolt Kit - complete engine [Black Bolts & Mirror Topz for intake & exhaust manifolds]
Chevy, 283, 307, 327, 350, 400, V8 black bolt kit & Polished Stainless Steel for Intake, Headers & Valve Covers [Polished] - Combo'z Mirror Topz & Button Heads
$257.16
Ford Cleveland V8 Bolt Kit - Inlet Manifold TFC air gap high rise single plane alloy [KustomBitz Blackz]
Ford 302, 351 Cleveland - High Strength standard engine replacement black bolts Hex head
$30.00
Ford Cleveland V8 Bolt Kit - Standard OEM style Inlet Manifold [KustomBitz Blackz]
Ford 302, 351 Cleveland - High Strength standard engine replacement black bolts Hex head
$30.00
NPT Plug 1/4 inch pressure plug Mild Steel Black - Perfect for Oil galleries in engine block 1/4
National Pipe Taper - NPTF Tapered thread pressure plug
$2.00
NPT Plug 3/8 inch pressure plug Mild Steel Black - Perfect for Oil galleries in engine block 3/8
National Pipe Taper - NPTF Tapered thread pressure plug
$3.00
NPT Plug 1 1/4 inch pressure plug Mild Steel Black - Perfect for engine block welsh plugs same application as Ford Motorsport 1 1/4
National Pipe Taper - NPTF Tapered thread pressure plug
$38.00
Holden V8 Bolt Kit - Intake Manifold bolts only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$40.00
Holden V8 Bolt Kit - Mechanical Fuel Pump bolts Only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$15.00
Holden V8 Bolt Kit - Exhaust Manifold bolts only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$30.00
Holden V8 Bolt Kit - Water Pump Pulley bolts Only [Black Bolts] for install with no fan
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$15.00
Holden V8 Bolt Kit - Lower Pulley to balance wheel bolts Only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$15.00
Holden V8 Bolt Kit - Engine Mount bolts Only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$25.00
Holden V8 Bolt Kit - Oil Pump bolts Only [Black Bolts]
Holden 253, 308 V8 high tensile black bolt kit [direct replacement] - hex heads
$25.00
Holden 6 Cyl Bolt Kit 186 & 202 - Oil Pump standard black bolts Only [Blackz]
Holden 186, 202 six cylinder high tensile black bolt kit [direct replacement] - hex heads
$20.00
Holden 6 Cyl Bolt Kit 186 & 202 - Standard Side Plates black bolts Only [Blackz]
Holden 186, 202 six cylinder high tensile black bolt kit [direct replacement] - hex heads
$16.00
Holden 6 Cyl Bolt Kit 186 & 202 - Water Pump Pulley black bolts Only [Blackz]
Holden 186, 202 six cylinder high tensile black bolt kit [direct replacement] - hex heads
$15.00
Holden 6 Cyl Bolt Kit 186 & 202 - Mechanical Fuel Pump black bolts Only [Blackz]
Holden 186, 202 six cylinder high tensile black bolt kit [direct replacement] - hex heads
$15.00
Holden 6 Cyl Bolt Kit 186 & 202 - Engine Mounts black bolts Only [Blackz]
Holden 186, 202 six cylinder high tensile black bolt kit [direct replacement] - hex heads
$30.00


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    Kustom Bitz news

    LS Engine swap and custom air bag IFS

    by kustombitz on 19 Feb 2020
    '67 Toyota Crown ute chassis build is going well. Got the LS engine and 6 speed manual box in place and we can use all the orginal serpentine pulleys, brackets etc. The narrow wheel track on the Toyota called for a tailored solution when it came to the front end.  These old Toyotas dont have service parts available any more so the front end had to be changed, so that made a brake upgrade alot easier too. We run R6 air bags from Air Ride sitting at a ride height of 6" for the air bag so got plenty of air volume in them for a good ride quality and a full length travel shock absorber so we get proper rebound tuning, along with a power steering rack.  So at the sill [belly of the car] we get a 5" ride hieght with a 4 inch drop, this thing will look great.

    Double shear brackets - rear coil overs Hot Rod Chassis

    by kustombitz on 30 May 2019
    Recently in Victoria some engineers have called for the upper and lower mounts for the rear coil over shockers to be a double shear bracket.  The thoery is that the bolt has too much twisting force on it and it will break. Well thats why on Hot Rods we use a 5/8" grade 8 bolt in a single shear bracket application to over engineer it so it does not break. A typical OEM application uses a 1/2" bolt in a double shear bracket. However to please the engineer we have thought out a simple plate kit that can be welded in on the upper mounts as you see here to satisfy their requirements and should fit into most applications without too much effort or rework.  We have a lower mount bracket nutted out as well.

    Diff bump stops custom made

    by kustombitz on 08 Mar 2019
    So many hot rod shops don't install proper bump stops.  In this instance we had to rebuild the shocker mounts on the diff as the rear end was bottoming out on the shocker travel becasue it had no properly designed bump stops in place. So the shock absorber mounting bracket was absorbing every bump when the suspension bottomed out, easy to see why both mounts broke. While we were repairing the diff I made a simple yet effective progressive bump stop that is held in place via the U bolts that hold the diff to the leaf springs. It turned out a very successful set up. This is yet another example how Kustom Bitz can sort out problems on your custom car or hot rod, its what we do.

    Torana A9X custom made rear pan hard bar 9" Diff

    by kustombitz on 08 Mar 2019
    Back in the day Group C racing one of the tricks to get the Holden Torana to handle nice and be more predictable in corners was to fit a rear pan hard bar to give much better diff locating than the OEM triangulated 4 bars offered.  However the body, subframe and floor pan at the rear is no where near strong enoungh to concentrate the loads of pan hard bar in any one spot, so it has to be carefully planned and constructed, especially so in a street car like this that we cannot put a full roll cage in. You see in a race car I can place the roll cage in a position to pick up such loads placed on the pan hard bar brackets, but in this situaton we couldn't. The picture above is with the unit installed, keep in mind the car was just a shell so no weight was in it and the rear is sitting high. Once the full wieght of the car is on, it will sit fairly level.  It retains the original triangulated 4 bars however we run PU bushes in the bottom arms and ordinary rubber in the top arms. So the lower arms and pan hard bar do the locating and the top arms have some give so they don't bind with the pan hard bar.

    Hot Rod 38 Plymouth custom panel fabrication

    by kustombitz on 04 Dec 2018
    We have put a lot of time and effort into this 38 Plymouth.  The whole rear lower panel and floor right through to under the seat has been completely hand fabricated and replaced.  The front and rear mud guards have been widened and the shape reworked for cleaner lines, the guard edge now follows the wheel's shape and shall feature a straight edge running board.to clean up those ugly Plymouth bits but still retain some typically Plymouth features like the swage lines. We have basically just fattened it up and made it more curvey.

    Our first wheels up Launch in Vintage Gas drag racing

    by kustombitz on 27 Aug 2018
    First pass for the day in Q1 in Vintage Gas [V/Gas] and we did our first wheels up launch in "Angas" and later in the day ran our best time so far with this combo with an 8.80s for the 1/8th mile track with an ET of 79mph.  The venue was Sunset Dragway which is just outside Mildura in country VIC. It was a 20deg sunny spring day with little wind, an all but perfect day for this time of year.  Great facilities at this venue for grass roots racers like us and they really looked after all of us racers, so its well worth the trip we had a blast. As far as our little 105e Anglia Gasser goes there is still heaps in it yet when a few tech issues get sorted out, but totally stoked at the moment. woo whooo .....

    Custom made fuel tanks

    by kustombitz on 14 Aug 2018
    Kustom Bitz has made a number of fuel tanks in mild steel and then we line them with KBS Coatings fuel tank liner which seals the inside off from rusting.  The beauty of mild steel is we can design it in such a way that it does not need strapps becasue it doesn't fatigue in a way like alloy or stainless steel with similar brackets.  It does not have to be perfectly square either, most of the tanks we have made are odd shapes to maximise the available space to gain maximum fuel capacity. The other advantage of mild steel is that in an accident it is less likely to split, even along the welds becuse we hand make them from cold rolled steel which will deform long before it splits and cracks. A custom tank is time consuming to do so if you can fit a cheap mass produced tank in your car then go for it, however if a technical outcome is what you are after then we can assist.

    Swan Hill Dragway in country VIC

    by kustombitz on 01 Jun 2018
    Nostalgia drags were on last weekend at the newly constructed Swan Hill Dragway. The first big meeting had an enourmous turn out of cars, there was some serious race cars there representing all classes. What a venue this track is going to be as they complete the supporting facilites.  Australian Nostalgia Racers put on the event in conjustion with the local Swan Hill Drag club members and it was a credit to all who were involved, I can tell you it is well worth the drive up there ..... just go. We had our Shop drag car that runs in Vintage Gas class, of which we have named ANGAS which is short [obviously] for Anglia Gasser.  This is our test bed for experience in racing and tuning AussieSpeed Performance Parts  We run a 250 6 cyl Ford Crossflow engine with an AussieSpeed AS0216 4brl intake and a double pumper carby, big hyd cam, high comp pushing down through a 4 speed stick to a Hilux diff.  First time out for the new combo and still alot of sorting to do, so the times were down but the fun level was up and over the top. You can view the build of the car here facebook@angliagasser 

    34 Ford Hot Rod Chassis with Winters Quickchange rear end

    by kustombitz on 27 Mar 2018
    We set up this winters quickchange rear end in a 34 Ford chassis on a set of our hair pin radius rods and coil over shocks.  This 34 Ford will be a hiBoy style hot rod so we bobbed the rear of the chassis and finished it off nicely so all the rear end will be on show, very nice .........

    AussieSpeed performance parts range at Ballarat swap meet

    by kustombitz on 27 Mar 2018
    Well another year done at Ballarat Swap Meet, tough year weather wise this year was certainly trying for us all. Thanks to all those who dropped by our site we really enjoy the feedback on our product range what ever your experiences have been, it is much appreciated.  There is so much on the go at the moment both with the AussieSpeed performance products range, our Kustom Bitz Hot Rod Parts and on going projects in our workshop keeps me running on empty .........

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