#DIY FLYCUT PISTONS FULL#
#DIY FLYCUT PISTONS PRO#
#DIY FLYCUT PISTONS MODS#

#DIY FLYCUT PISTONS MODS#

I have no idea how realistic that list is, however I'm hoping its very achievable with much bigger builds already been achieved across the globe.īolt on mods that I already have and intend to use:ĭonor engine is a L28 N42 head - F54 block which was healthy and running before removal I'm told. High revving engine, it needs to safely be able to rev to 7k rpm consistently (Not looking for a debate over torque being preferential for a road car, its my preference and driving style).200bhp at the flywheel (rather slightly over than under).Most importantly I want to set out my goals for the engine: It won't be the most powerful engine out there but the idea is that the car remains very usable while being more than capable of overtaking when required etc. I want to build my ideal fast road engine for the car as its the only area now lacking. I've read dozens of threads but lots still goes over my head right now. Now I have no experience whatsoever in building an engine but you've got to start somewhere so I really need all the help and advice you can offer. Needing something to keep myself busy I'm planning on stripping down the L28 N42 - F54 combo that I have sat in the garage and doing a ground up rebuild ready to drop into my 240z. i still have a few cans of playdough i bought years ago and its come in hande for checking air cleaner wingnut to hood clearence when not using a huud schoop ! if you dont have enough you will need to have an engine shop flycut the pistons.For those of you who don't know, it looks like I'm stuck back in the UK for the next few months waiting for this global pandemic to resolve itself i wouldnt trust calipers because even if the vr on the piston is 2.12 for example the 2.08 valve might not be in the same exact location and even if it is you should always check v to p clearence with a cam that big. measuring from one side to the other of the valve will tell you if the valve reliefs are large enough for the valves.

any thinner and you risk a piston hitting the valve due to valve float or a weakened spring not closing the valve fast enough etc etc. 080', or the thinniest the playdough should be is. do this across each valve from one side to the other. with the playdough on the piston use a small metal machinist ruler and insert in one side of the valve releif untill it bottoms on the top of the piston and then check how far the ruler went in.

#DIY FLYCUT PISTONS FULL#

put the head with the gasket you will be using on and torque to specs and very slowly rotate the engine 2 full turns of the crank. put light valve springs on 1 in & ex valve in the same cylinder.

put about 1/4' of playdough on the top of the piston. The thing to do is get a can of playdough from toys r us. If anyone knows of a decent priced forged that fits the 2.08 valve size I would appreciate the input. I would obviously rather have forged but the price difference pretty large considering I would probably have to go straight to an srp pistons. Appreciate if anyone has any information. The valve reliefs look huge on these pistons, the compression works for my application.but will the reliefs fit the 2.08 valve or will I have to open them up more? I understand depth could change but I'm worried about the actual diameter of the valve in relation to the relief.

#DIY FLYCUT PISTONS PRO#

They are made by speed pro and hypereutectic. Ive heard good things about the H336CP pistons. I purchases 205s so I can grow into a stroker later down the road. I purchased scat forged rods but the budget is getting limited. Looking to shift around 6500-7000 depending on where power drops. I'm building my 351w up with AFR 205 heads.

Diy flycut pistons