[Katech_Mike]

Originally Posted by Baddawg53

I've decided to go with a 416 katech short block and their track day camshaft. Cost wise I think it was the best move and I'm pretty confident in katech. I'm going to install the LT4 fuel system to make sure it doesn't run lean. I'm going to reuse my current LT1 heads that have been worked but installing new valve springs. New BMR engine mounts, ATI damper, all the goodies...

I'm curious if I should invest in a 103mm throttle body or stick with the 95mm I have. Any insight would be appreciated ... And if a 103 then which intake tubing do you use with that large of a throttle body? Thanks

Shoot me a message when your ready. We have pistons on order for the next batch of higher compression N/A 416 shortblocks now.

[Baddawg53]

Originally Posted by KingLT1

If I am building a 416 then I want to utilize all the potential airflow capabilities.

my course of action would be -> Higher Flowing heads, Ported MSD, 103tb, and a Rotofab big gulp or 5" intake of some sort.

Thanks for your response. I'll have to start looking for the 103 TB

[Baddawg53]

Originally Posted by Katech_Mike

Shoot me a message when your ready. We have pistons on order for the next batch of higher compression N/A 416 shortblocks now.

Thanks, I already called and placed the order. Lead time supposedly 8 weeks. Hopefully its sooner.

[Baddawg53]

Alright, so I've ordered a bunch of stuff, and I'm looking for feedback. Have I ordered anything that is wrong? Missing something that I should be replacing? Here's my list

Katech 416 NA short block, fully forged, 11.5:1 compression
LT4 injectors, in tank and high pressure pumps, and fuel lines
ATI balancer
BTR 660 dual springs/seals
Katech oil pump
NW 103 T/B
JLT 5 inch cold air intake
Katech LT1 track day camshaft
I have a year old set of Johnson 2110r lifters that seem ok, but with the metal that went through the system I am thinking those should be replaced like I'm doing with the oil cooler.

I already have an MSD unported manifold and 1 7/8 kooks headers and exclusively run E85. I plan on buying a new OEM clutch because I don't think I'll exceed it's capabilities

I expect to make over 600whp, considering I was at 550whp with the stock bottom end. Thoughts? Suggestions?

[truth411]

Originally Posted by Baddawg53

Alright, so I've ordered a bunch of stuff, and I'm looking for feedback. Have I ordered anything that is wrong? Missing something that I should be replacing? Here's my list

Katech 416 NA short block, fully forged, 11.5:1 compression
LT4 injectors, in tank and high pressure pumps, and fuel lines
ATI balancer
BTR 660 dual springs/seals
Katech oil pump
NW 103 T/B
JLT 5 inch cold air intake
Katech LT1 track day camshaft
I have a year old set of Johnson 2110r lifters that seem ok, but with the metal that went through the system I am thinking those should be replaced like I'm doing with the oil cooler.

I already have an MSD unported manifold and 1 7/8 kooks headers and exclusively run E85. I plan on buying a new OEM clutch because I don't think I'll exceed it's capabilities

I expect to make over 600whp, considering I was at 550whp with the stock bottom end. Thoughts? Suggestions?

If I were you. I'd bump up compression abit.
A combination of a thin gasket and milling the heads a little will get you to 12.5:1 compression. Will be fine on pump gas, and respond well to E85.

[Baddawg53]

Originally Posted by truth411

If I were you. I'd bump up compression abit.
A combination of a thin gasket and milling the heads a little will get you to 12.5:1 compression. Will be fine on pump gas, and respond well to E85.

I thought about this actually, decided on a slightly thinner gasket but I want to measure the piston to valve clearance before deciding on any other changes.

[Katech_Mike]

Originally Posted by Baddawg53

I thought about this actually, decided on a slightly thinner gasket but I want to measure the piston to valve clearance before deciding on any other changes.

It's going to have a mile of clearance with the aftermarket forged pistons.

Milling .006 nets roughly 1cc of volume if you want to do some rough calculations.

[Baddawg53]

Originally Posted by Katech_Mike

It's going to have a mile of clearance with the aftermarket forged pistons.

Milling .006 nets roughly 1cc of volume if you want to do some rough calculations.

Great to know I'll have plenty of clearance. Thanks for those rough calculations.

[Baddawg53]

Well I was finally able to get the new engine installed, and it's running. Car will be at the tuner next week, so we'll see how she does

Here's the mod list, I'm very curious what the numbers will be, I had about 550whp 460tq previously. I'll be disappointed if it doesn't break into the 600's with a increase in torque.

Katech 416 NA short block
Ported stock heads, BTR springs, CHE rocker trunnions
Cometic 0.040 head gaskets
Katech track day camshaft
Johnson lifters, 7.825 and 7.850 3/8 pushrods
Katech oil pump
Katech lightweight flywheel
ATI damper
LT4 fuel system
Flex fuel conversion
160 degree katech thermostat
MSD manifold
NW 103 mm throttle body
JLT 5 inch intake
BMR engine mounts with solid bushings
LT4 clutch

AC compressor and lines have been deleted, using motul break in oil and will swap out to mobil 1 0-50 before the first track day.

Car sounds good even before the tune.

[Tim M]

Bravo! A significant undertaking for sure. Good luck at the dyno!

[Ryfly05]

Definitely need some videos of that thing!

[Baddawg53]

Originally Posted by Ryfly05

Definitely need some videos of that thing!

Haha ... I do have one video, I was planning on taking a better one after I actually get it out of the garage and cleaned up ... 7 months of dust on her right now!! But she sounds good!!

[Baddawg53]

Here's one thing I'll add ... If I ever have to bleed that slave cylinder again I'm probably just gonna sell the car, you just cannot get to it. What a dreadful design, and I had no idea there was a kit to help it. So I had to go back and remove the shifter, trans mounts, loosen the engine mounts and drop the trans down a few inches just to barely get to it. What an absolute nightmare.

[Baddawg53]

Here's a quick video.. new engine!!