Destroyer of all Ricers
SHAKE AND BAKE!
Joined: Jul 2007
Posts: 5
Likes: 0
Whats Funny Is I Know Damn Well That My Car Is Riced Out But People Like That ARE THE ONES WHO GAVE US OUR NAME... THE DIFFERENCE BETWEEN A RICER AND A RICED OUT CAR LIKE MINE IS THAT RICERS THINK THEY ARE THE SHIT AND THEY CAN RACE...
ME ON THE OTHER HAND, ILL B THE FIRST 2 ADMIT THAT MY ACCORD IS ALL SHOW, NO GO... BUT YOU WONT SEE ME TRYIN 2 RACE NO DAMN VETTE... BUT GOOD STORY MAN, HAD ME ROLLIN @ WORK...
ME ON THE OTHER HAND, ILL B THE FIRST 2 ADMIT THAT MY ACCORD IS ALL SHOW, NO GO... BUT YOU WONT SEE ME TRYIN 2 RACE NO DAMN VETTE... BUT GOOD STORY MAN, HAD ME ROLLIN @ WORK...
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"That's illegal in all 52 states!"
Last edited by TampaRicer; Oct 4, 2007 at 01:35 PM.
The slowest STi in the US
Joined: Aug 2006
Posts: 670
Likes: 0
From his garage:
LT4 Swap 383 Stroker
673hp and 743lbs by a Mustang Dyno
All Forged Internals
DOHC Heads w/ Heavy Port and Polish
1.6 Roller Rockers
38lbs Injectors
.509in .528ex 234Dur Crane Hyd Roller Cams
78mm TB
MSD HEI Dist
6AL Controller
Ceramic Wrapped Hedman Header 3in
True Dual 3in going to 3in Dual Exit Flowmaster 44s
3400Stall Converter
Sounds like a low tens car, but who make dohc heads for a ltx?
Also dont you think having a 78mm tb is choking it?
LT4 Swap 383 Stroker
673hp and 743lbs by a Mustang Dyno
All Forged Internals
DOHC Heads w/ Heavy Port and Polish
1.6 Roller Rockers
38lbs Injectors
.509in .528ex 234Dur Crane Hyd Roller Cams
78mm TB
MSD HEI Dist
6AL Controller
Ceramic Wrapped Hedman Header 3in
True Dual 3in going to 3in Dual Exit Flowmaster 44s
3400Stall Converter
Sounds like a low tens car, but who make dohc heads for a ltx?
Also dont you think having a 78mm tb is choking it?
Since when did GM put out DUAL OVER HEAD CAM engines on their LT or LS series engines? Last time I checked, they are pushrod engines. Care to elaborate Roscoe? Seems to me like you just owned yourself.
That looks like a PUSHROD engine to me folks!
Maybe I'm wrong... I don't know. I mean, I did own an 01 Camaro SS at one point (LS1 PUSHROD!). I also owned a 99 Grand Am GT (3.4 PUSHROD!). So its not like I dont know my GM stuff here.
Last edited by SteelDragonSTi; Oct 4, 2007 at 01:49 PM.
Thread Starter
Covet Thy Corvette
Joined: Oct 2007
Posts: 20
Likes: 0
Ever heard of a ZR1 Corvette?
LT5 Maybe? No?
Didnt think so you are just talkin out your ass?
Yea i think so.
They have DOHC just like mine.
They were based on the LT4 head cfm flow and basic design but are DOHC
What do you think I got the heads off of?
DOHC heads dont make more HP as Pushrod 2 valves
But, they do make more usable torque throughout the power band especially around high rpms.
So anything else?
And yea the 78mm is a bit small but it was the biggest i could order based on the LT5's upper and lower intake beacause the intake ports on the head are unlike any other SBC.
LT5 Maybe? No?
Didnt think so you are just talkin out your ass?
Yea i think so.
They have DOHC just like mine.
They were based on the LT4 head cfm flow and basic design but are DOHC
What do you think I got the heads off of?
DOHC heads dont make more HP as Pushrod 2 valves
But, they do make more usable torque throughout the power band especially around high rpms.
So anything else?
And yea the 78mm is a bit small but it was the biggest i could order based on the LT5's upper and lower intake beacause the intake ports on the head are unlike any other SBC.
Last edited by WarBoom; Oct 4, 2007 at 02:00 PM.
Registered User
Joined: Aug 2006
Posts: 1,053
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I wasn't doubting ya. I have heard of 4 valve heads, but not heads that relocated the cam to ohc position. Ill come out to the track with ya, but I olny have a mid 12's car, and its a redneck mobile too.
Last edited by GRez; Oct 4, 2007 at 02:07 PM.
The slowest STi in the US
Joined: Aug 2006
Posts: 670
Likes: 0
Ever heard of a ZR1 Corvette?
LT5 Maybe? No?
Didnt think so you are just talkin out your ass?
Yea i think so.
They have DOHC just like mine.
They were based on the LT4 head cfm flow and basic design but are DOHC
What do you think I got the heads off of?
DOHC heads dont make more HP as Pushrod 2 valves
But, they do make more usable torque throughout the power band especially around high rpms.
So anything else?
And yea the 78mm is a bit small but it was the biggest i could order based on the LT5's upper and lower intake beacause the intake ports on the head are unlike any other SBC.
LT5 Maybe? No?
Didnt think so you are just talkin out your ass?
Yea i think so.
They have DOHC just like mine.
They were based on the LT4 head cfm flow and basic design but are DOHC
What do you think I got the heads off of?
DOHC heads dont make more HP as Pushrod 2 valves
But, they do make more usable torque throughout the power band especially around high rpms.
So anything else?
And yea the 78mm is a bit small but it was the biggest i could order based on the LT5's upper and lower intake beacause the intake ports on the head are unlike any other SBC.
OK... you lost me again Roscoe... So now you have LT5 heads on an LT4 383 pushrod engine? Can you explain how you managed to retrofit DOHC LT5 heads to the 383 LT4? I must be going nuts here, but I cant seem to find anything on the internet that supports what you just said. Unless you want to recant your story and say that you have a ZR-1 LT5 swapped on your vette, that would be a bit more credible... Educate me/us please?
I just verified with an ASE Master Tech on the validity of your claim... I basically asked him if he could build me a 383 stroker LT4 with DOHC heads out of an LT5 and per the corvette manual and his expertise, its IMPOSSIBLE to perform. BTW, I cant seem to find anything on the net about a DOHC LT4 engine. Ball's on your court now bud... we are waiting.
*Turbo Interceptor*
Joined: Mar 2002
Posts: 6,820
Likes: 1
Wow at this thread. I see the point, yes there are more than a handfull of 4 bangers on this board that will take that Vette down.... we know this
What you guys havent noticed is that with all the bashing done to this Vette guy, he has yet to come out of character keeping a cool head.
WarBoom might be a pretty cool guy and theres nothing wrong with a true rednecks.... plenty have helped me out....
What you guys havent noticed is that with all the bashing done to this Vette guy, he has yet to come out of character keeping a cool head.
WarBoom might be a pretty cool guy and theres nothing wrong with a true rednecks.... plenty have helped me out....
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Thread Starter
Covet Thy Corvette
Joined: Oct 2007
Posts: 20
Likes: 0
And yea there is a LT4 with LT5 DOHC head
Mercury Marine made the original LT4 and 5 right?
Well in their marine series of engines they made a engine with the LT4 block and the LT5 heads and upper and lower intake.
They did it to save money and to gain reliabilty.
Its called a LT4 Retro Kit and you can order it through Mercury Marine order center.
It costs $2358.99 and if i can find the receipt ill post a pic of it too.
The kit includes a cam plug and cam bearing oil locators that reroute the oil around the now non existant single cam.
It also incldes the front cover that allows you to mount the puley system for the heads.
And if you were so perplexed you can measure the engine and it is a full 3.81 inches longer than a stock LT4
Mercury Marine made the original LT4 and 5 right?
Well in their marine series of engines they made a engine with the LT4 block and the LT5 heads and upper and lower intake.
They did it to save money and to gain reliabilty.
Its called a LT4 Retro Kit and you can order it through Mercury Marine order center.
It costs $2358.99 and if i can find the receipt ill post a pic of it too.
The kit includes a cam plug and cam bearing oil locators that reroute the oil around the now non existant single cam.
It also incldes the front cover that allows you to mount the puley system for the heads.
And if you were so perplexed you can measure the engine and it is a full 3.81 inches longer than a stock LT4
The slowest STi in the US
Joined: Aug 2006
Posts: 670
Likes: 0
Life would have been a lot easier if you just say you have an LT5 engine... For that picture shows an LT5. 
**edit**
I just got this excerpt from the net
"Oh yeah, the LT5 was a double overehead cam all aluminum 350 ci V-8 built by Mercury Marine for the Zr1 that sold from 1990 to 1995. It made 375hp early on and in 1994 I think they bumped it up to 405. It shared NOTHING in common with the LT1 or any of the other motors."
How the LT5 is Built
LT5 Technical Briefing
This was a great read... However, it mentioned nothing how the engine was conceived from the LT4's short block design.
So in short, you have an LT5 engine. I sure hope that you can outrun the 4 cyl. cars.
BTW, nice car... please don't crash it. And I learned something new about the LT5 engine today. Thanks!
**edit**
I just got this excerpt from the net
"Oh yeah, the LT5 was a double overehead cam all aluminum 350 ci V-8 built by Mercury Marine for the Zr1 that sold from 1990 to 1995. It made 375hp early on and in 1994 I think they bumped it up to 405. It shared NOTHING in common with the LT1 or any of the other motors."
How the LT5 is Built
LT5 Technical Briefing
This was a great read... However, it mentioned nothing how the engine was conceived from the LT4's short block design.
So in short, you have an LT5 engine. I sure hope that you can outrun the 4 cyl. cars.
BTW, nice car... please don't crash it. And I learned something new about the LT5 engine today. Thanks!
Last edited by SteelDragonSTi; Oct 4, 2007 at 02:54 PM.
