If you’re going to speak with authority about a thing, speak first to those who know and love the thing better than you do. Well, while we are the experts on the thing – the Porsche 928 – there are those out there who love it more. And it’s a fair bet that these guys use Design 911 for all things Porsche 928, especially when it comes to upgrades…

We could tell you all about how the 928 did not replace the 911 and was the only sports car to win Car of the Year. But the good people supporting the 928.org.uk have all the fanboy stuff and some very good editorial, too. So, we’ll just focus on how to get your 928 up to the high standards of the cars on the site, mechanically speaking. Basket at the ready? Let’s go!

Porsche 928 S4 Clubsport for sale at – https://www.elferspot.com/en/car/porsche-928-s4-clubsport-1989-3157317/

Navigating Cylinder Head Gaskets for Engine Survival

Cylinder head gaskets aren’t going to win you a place on the 928 photo reel, but boy will you notice if it needs replacing. So, get ahead of the gasket game right here. This bottom end gasket set falls into the ‘non-photogenic-but-stops-engine-exploding’ bracket. If you know, you know.

CYLINDER HEAD GASKET SET. PORSCHE 968

Question time!

Q/ What connects the piston to the crankshaft, thus transferring combustion pressure to the crankpin? Bonus points for naming the size differential of the bearing portions at the piston and crankshaft sides respectively.

A/ If you went with ‘connecting rod’, ‘small’ and ‘big end bearings’ you win – and get to enjoy a healthy discount. We have genuine replacement parts, and the nuts and bolts that keep things where they should be, doing what you need.

BIG END CONROD BEARINGS. PORSCHE 924S / 944 / 968

Get your bearings.

Relax. If you’re looking for a main bearing set, a shaft bearing, or con rod bearings to match the above, then you’ve already found the right place. Meanwhile, Wössner Pistons is a UK, family firm who have been making pistons and conrods for more than 40 years.

They promise ‘performance, quality and longevity’ and if that’s something you could use in your Porsche mill, let’s get you some shiny new pistons for your 968 or 944 S2.

MAIN BEARING SET, STANDARD. PORSCHE 924S / 944 / 968

False economy alert!

Times are tough, but cylinder head valves are not where you want to be making compromises. Thankfully, Design 911 understand that, and our valve springs, cylinder head exhaust valve kits, inlet valve kits, and exhaust valve guides are all either genuine or OE Match components.

ENGINE CYLINDER HEAD EXHAUST VALVE KIT. PORSCHE 944 S / S2 / 928 S2 / S4 / 968

And another one!

What goes in the combustion chamber should stay there. Our original and after-market piston rings are made from forged steel or performance coated materials to improve durability and reduce friction.

Porsche 928 S4 Coupé, 1990

Engine overhaul time for the Porsche 928?

Design 911 customers like to get right into their cars – and so do we. As with everything, there’s a right and a wrong way to get things done.

If you’re going to remove the balance shaft belt and ancillary products on 944/968, you’ll need to plug up the holes on the engine, to stop leaks from the missing shafts. We can fix that, just as we can help fix whatever ails your clutch, gearbox, transmission or transmission. Take a look: It’s all here.

BALANCE SHAFT DELETE KIT. PORSCHE 944 / 968

Clutch upgrades 101.

Like to push your Porsche to the limit – preferably as part of a private track session? Then you may have re-mapped your car’s ECU for higher torque.

That’s going to stretch your car’s standard clutch and risks incurring terminal damage and wear to the pressure and drive plates. So, fit a Sachs performance clutch: they live longer and have superior thermal resistance ­to get the most from your upgrade.

CLUTCH CENTRE PLATE RIGID PADDLE. PORSCHE 911 / 944T / 968 / 964RS / 993RS / 996GT3 SACHS

Transformational differential…

If you’re running a six-speed gearbox, and want improved performance from every part of your Porsche then consider then consider replacing your standard Porsche open differential with the Quaife ATB Helical LSD differential.

Why? Because unlike a conventional plate-style limited slip differential, this bad boy relies on gears rather than clutch plates to deliver a much smoother feel. And who doesn’t want that?

LIMITED SLIP DIFFERENTIAL (LSD) FOR QUICK ACCELERATION PORSCHE 968 6 SPEED

Feeling fly?

…and while you’re reengineering your clutch, think about swapping out your standard issue flywheel for this lightweight, ‘tuned’ billet model.

It’s a beauty, milled from high quality steel and aluminum and the only flywheel on the market manufactured to a .001 machine tolerance. You get a flat seating surface, smooth rotation for perfect balance and extended engine life. And more rotations than Wham!’s Last Christmas in December.

https://www.design911.com/porsche/968-cs-3-0l-1993-95/differential/