You’d probably get worse performance unless you greatly de-shroud them. You don’t gain much area for airflow and most of it hugs the cylinder walls anyway. You’d be best off with de-shrouded stock valves with more lift. Change the springs if you’re changing your powerband location and/or lift. Otherwise stiffer springs when you don’t need them will contribute to more valve train losses and less overall power/efficiency.
Hello, the main reason to use the 5s-fe block is because it has siamese cylinder bores. That means that there are no water passages going between cylinders 2 and 3, which is a well-known weak spot of the 3s-gte block - the block cracks between cylinders. Also, the water pump area is stronger, which allows for higher clamping pressure without cracking the head stud threads near the water pump. 5s-fe has 87mm bore compared to 86mm bore of the 3sgte. Other than that the blocks are identical. You can reuse cranks between the block and pretty much all parts excluding pistons (unless you bore a 3sgte block to 87mm, which is a bad idea).
No 5s-fe has oil squirters as far as I'm aware. We're using oil squirters from BMW M54B30. We've drilled the holes with CNC as the wall of the block there is too thin.
It's not the same, but similar. But even the older 5s (91-96) is stronger than 3s block. However, if you plan on going 600whp+ I'd highly advice on getting the 98+ block.
@@deepsylol ok. i have 5sfe. i have to change head gasket and im about to pull off the head tomorrow. never done any work on an engine before. i just know to put everythng back on exactly as it came off. i can pull the head off with the intake manifold and fuel rail still on right? i have 91 5sfe from an mr2
@@warrenpeas You should be able to, yes. It’s not a hard job, but you have to work clean and pay attention to details. And don’t forget to use torque wrenches.
Yes, it does. It can be assembled directly with using only stock parts. However, some shops are selling custom headgaskets could improve the cooling flow between head and block as there's minor misalignment.
Blessed be the algorithm, for i have found thee.
5s head full redesigns are also doing about 600 torque 2.4 liter airflow
🤩 Awesome build 🤩
I wanna see this motor in action
All that work is respectable i just k20 swapped mine lol easy power
I wonder if I can use 3sgte valves and springs on a 5SFE head for better performance????
You’d probably get worse performance unless you greatly de-shroud them. You don’t gain much area for airflow and most of it hugs the cylinder walls anyway. You’d be best off with de-shrouded stock valves with more lift. Change the springs if you’re changing your powerband location and/or lift. Otherwise stiffer springs when you don’t need them will contribute to more valve train losses and less overall power/efficiency.
nice build, what is the difference between those two blocks? does it have the same engine mounts and bolt pattern for transmission as 3SGE block?
Hello, the main reason to use the 5s-fe block is because it has siamese cylinder bores. That means that there are no water passages going between cylinders 2 and 3, which is a well-known weak spot of the 3s-gte block - the block cracks between cylinders. Also, the water pump area is stronger, which allows for higher clamping pressure without cracking the head stud threads near the water pump. 5s-fe has 87mm bore compared to 86mm bore of the 3sgte. Other than that the blocks are identical. You can reuse cranks between the block and pretty much all parts excluding pistons (unless you bore a 3sgte block to 87mm, which is a bad idea).
Can I use stock 5sfe pistons when building my 5sgte?
@@billybrian7181 You can, but it's pointless as they're very weak.
Nice
@deepsylol you didn't have to shave down your crankshaft?
Dyno sweep validating 600 WHP ?
I noticed oil squirters? Does 5s block have those? I thought it was only a 3sgte feature...
No 5s-fe has oil squirters as far as I'm aware. We're using oil squirters from BMW M54B30. We've drilled the holes with CNC as the wall of the block there is too thin.
How much
does head and block align perfect? what about crankshaft, oil pump, water pump and accesorioes
Hi. I have a 91 mr2 5sfe engine. Are they the same block you're using?
It's not the same, but similar. But even the older 5s (91-96) is stronger than 3s block. However, if you plan on going 600whp+ I'd highly advice on getting the 98+ block.
@@deepsylolhow can i know if it is a 98 n up ?
@@caifanesmr2specv The 98+ block has square casting around the water plugs on the block.
why did you have to rethread so many bolt holes?
@@warrenpeas All holes were in good shape, just making sure there’s no debris inside to ensure equal clamping on all bolts.
@@deepsylol ok. i have 5sfe. i have to change head gasket and im about to pull off the head tomorrow. never done any work on an engine before. i just know to put everythng back on exactly as it came off. i can pull the head off with the intake manifold and fuel rail still on right? i have 91 5sfe from an mr2
@@warrenpeas You should be able to, yes. It’s not a hard job, but you have to work clean and pay attention to details. And don’t forget to use torque wrenches.
what I understood you use block 5sfe cylinder head 3sgte?
correct
How many teeth timing belt you use ?
@@salimkoodruth4020 I'm using OEM toyota belt with part number 1356879315
@@deepsylol thanks
@deepsylol I'm late, but did you use a 5sfe head gasket or 3sge gasket?
the 5s-fe applies perfect with the transmision and the heads?
Yes, it does. It can be assembled directly with using only stock parts. However, some shops are selling custom headgaskets could improve the cooling flow between head and block as there's minor misalignment.
I think you put the main bearings on the crank wrong, the arrow should point at the front of the engine 6:37
Oh wow, I believe you're correct. The weird thing is that 2 years later the engine is still running strong.