Largest displacement BBB based stroker kit ideas, please

RocketcarX · Jul 13, 2017

That's pretty much it, I want to do the largest displacement 3v possible.
I'm not finding consistent info on the Big Bore based stroker kits, most of the info online is older. and what seems like small displacements.
Max effort, max cubes, I'm ok with a sub 7k rpm redline in order to extend service life, it's unclear to me what RPM range would be considered "maximum", but the theme is a max effort 3v build.
We can talk about if it's for nitrous (honestly my dream build) or boost, which I'm told is the best idea from anyone I mention this too.
The idea is "big" cubic inch, max effort engine with 2 or 3 stages of nitrous. Old school and light.

phattyfat · Jul 14, 2017

I'm in the process of doing this now. I did a dss 5.3 with 3 Valve heads and 1 big single stage on a progressive box. I got the car running and driving. No real concrete numbers yet as far as dyno or track. Sounds like you're into the same thing I am.......nitrous. Kind of a forgotten power adder in a sea of boost.

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01yellerCobra · Jul 14, 2017

Are you wanting to stay 4.6 based or are you thinking 5.4? Do they make a big bore block for the 5.4? I know they make (or made) a stroker crank for the 5.4, but it wasn't very popular. Mine was a 323 with a 3.75" stroker crank. I think with a 3.80" stroker it goes up to 326. After that you have to play with bore size.

I only spun mine up to 6500rpm. It fell off after that. The torque was nice though. My graph looked like a twin screw even though it was a centri.

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RocketcarX · Jul 14, 2017

01yellerCobra said:
Are you wanting to stay 4.6 based or are you thinking 5.4? Do they make a big bore block for the 5.4? I know they make (or made) a stroker crank for the 5.4, but it wasn't very popular. Mine was a 323 with a 3.75" stroker crank. I think with a 3.80" stroker it goes up to 326. After that you have to play with bore size.

I only spun mine up to 6500rpm. It fell off after that. The torque was nice though. My graph looked like a twin screw even though it was a centri.

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I like the idea of the 4.6 based based block, intake options don't exist for the 5.4 as readily as they do in the 4.6 world and I wouldn't have to acquire as many parts to put it in the car

RED09GT · Jul 14, 2017

01yellerCobra said:
Are you wanting to stay 4.6 based or are you thinking 5.4? Do they make a big bore block for the 5.4?

The 2013-2014 GT500 block is pretty much that.

Sky Render · Jul 14, 2017

RED09GT said:
The 2013-2014 GT500 block is pretty much that.

The '13-14 GT500's Trinity engine has a displacement of 5.8L.

46addict · Jul 14, 2017

Sky Render said:
The '13-14 GT500's Trinity engine has a displacement of 5.8L.

I think he means a big bore 5.4 comes out to roughly 5.8L.

OP, if you're going to stop at 326ci, the Brenspeed stroker shortblock can bolt up to the stock heads/intake/headers. Just need different motor mounts.

tigerhonaker · Jul 14, 2017

46addict said:
I think he means a big bore 5.4 comes out to roughly 5.8L.

OP, if you're going to stop at 326ci, the Brenspeed stroker shortblock can bolt up to the stock heads/intake/headers. Just need different motor mounts.

And they seem to be very reliable ...............

Terry

AndrewNagle · Jul 14, 2017

46addict said:
if you're going to stop at 326ci, the Brenspeed stroker shortblock can bolt up to the stock heads/intake/headers. Just need different motor mounts.

tigerhonaker said:
And they seem to be very reliable ...............

Terry

BAM !

What he meant to saw was FUCK Breenspeed, but he is to nice of a guy to say that

slackinoff · Jul 14, 2017

Preaching to the choir here but bore spacing on mod motors is all the same since conception, which is cool cuz you can just about about put about whatever head on whatever block. It does limit bore size, though. I would spend my money on a 13 -14 Trinity motor.

slackinoff · Jul 14, 2017

Just get the 5.8

travelers · Jul 14, 2017

What's your budget for this monster build?

Lowfast · Jul 14, 2017

Eleventy-billion dollars should be just enough.

travelers · Jul 14, 2017

Lowfast said:
Eleventy-billion dollars should be just enough.

That sound about right. Maybe a custom re-sleeved 5.8, custom crank, rods and pistons to start....... :clap:

RocketcarX · Jul 16, 2017

I want to keep it a 3 valve and the goal is to make the displacement maximum, I'm ok with having a crank ground, my model is the mod engine Kaase built for the Engine Masters a few years ago, it was a 409ci deal. We are strictly focused on the short block right now, we will worry about heads in phase 2.

http://www.hotrod.com/articles/jon-kaases-ford-four-valve-mod-motor/

I am an engine builder by trade, but it's been limited to pushrods and diesels as far as what would be considered my "expertise". I have done a few OHC deals, but never max effort.
The dream build for me would be a 409 cubic mod motor with 2 or 3 stages of nitrous, for many reasons, so I suppose that idea is what would lead parts decisions as far as rod material or block prep, ring land depth, all of that good stuff.
We want it to be durable, obviously you can't block every piston failure or tradition nitrous related failures, what I mean by durable is; I take care of the engine through preventive maintenance and proper engine management and it holds up to the intended power levels and regular use.

slackinoff · Jul 16, 2017

RocketcarX said:
I want to keep it a 3 valve and the goal is to make the displacement maximum, I'm ok with having a crank ground, my model is the mod engine Kaase built for the Engine Masters a few years ago, it was a 409ci deal. We are strictly focused on the short block right now, we will worry about heads in phase 2.

http://www.hotrod.com/articles/jon-kaases-ford-four-valve-mod-motor/

I am an engine builder by trade, but it's been limited to pushrods and diesels as far as what would be considered my "expertise". I have done a few OHC deals, but never max effort.
The dream build for me would be a 409 cubic mod motor with 2 or 3 stages of nitrous, for many reasons, so I suppose that idea is what would lead parts decisions as far as rod material or block prep, ring land depth, all of that good stuff.
We want it to be durable, obviously you can't block every piston failure or tradition nitrous related failures, what I mean by durable is; I take care of the engine through preventive maintenance and proper engine management and it holds up to the intended power levels and regular use.

Awesome! Glad to hear you sticking with the 3v. I too am dedicated to the little cammer. These 3v's have character. They are not some basted child liken the Lt freaks that came before the mighty La series. These are damn good engines, and were put in a TON of vehicles. I LOVE they way they sing and also rumble. Mid mounts make it magical. I get compliments on the sound of my car over it being a nice clean Bullitt. No shit.

Glad Ford decided in 91( Lincoln town car) to get the OHC engine out and developing. Look at where we are now!!!! Good forward tbought by fomoco.

And thank you for that article! Great read my friend.

RocketcarX · Jul 16, 2017

slackinoff said:
Awesome! Glad to hear you sticking with the 3v. I too am dedicated to the little cammer. They have character.....or I have build character into it with getting to know it's quirks and great things about it.

Glad Ford decided in 91( Lincoln town car) to get the OHC engine out and developing. Look at where we are now!!!! Good forward tbought by fomoco.

I think it has a lot of potential without the complication or size/weight disadvantage of the newer coyote platform. I'm debating locking out the VCT or trying really hard to keep it, but that is miles ahead of where I am now, so lots of time to think. lol.
Nothing sounds like a 3v, nothing.

slackinoff · Jul 16, 2017

I I'm in LOVE every morning with my generic mid mounts, pype bombs, o/r x pipe.......grunts screams pops and burbles. Stock cam. Little loud on cold crank, but giver 20 seconds and she gets mellow.

slackinoff · Jul 16, 2017

RocketcarX said:
I think it has a lot of potential without the complication or size/weight disadvantage of the newer coyote platform. I'm debating locking out the VCT or trying really hard to keep it, but that is miles ahead of where I am now, so lots of time to think. lol.
Nothing sounds like a 3v, nothing.

That's interesting. Looking forward to everyone's serious efforts here. There are some good builds right now.

weather man · Jul 16, 2017

L&M has done a 5.8 modified for 3V heads. Would need to run a Hogan intake. It was around $28,000 for the short block and intake when I priced it out. I believe they have sent one or 2 out the door. I would want heads ported like swflastang05 did with that combo.

Largest displacement BBB based stroker kit ideas, please

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