Mod motor OR pushrod? Input please

SAGE · October 5th, 2008, 10:09 PM

I have been milling this over for awhile. I am in a position to choose what motor I am going with in my mustang. I was wondering if some of you could give me some pros and cons of both, and ultimately give me a vote on which would be the best way to go. My choice is going with a 5.4 mod motor, or going with a 351W base that will be bore stroked somewhere around 430. If it helps, this motor will be going in an SN95 and will be turbocharged. All input is appreciated. Thanks.

mpboy · October 8th, 2008, 10:32 PM

pushrod... FTW

05roush0090 · October 13th, 2008, 12:18 PM

I would rather have pushrod motor as it seems to have less limitations, but then again with all the recent aftermarket advancements for the mod motors valvetrain I guess you could go either way.

acmillr · October 13th, 2008, 12:23 PM

This is an easy question. I love mod motors, but the 5.4 is a better boat anchor than powerplant.

MikeD05GT · October 13th, 2008, 12:24 PM

Originally Posted by acmillr

This is an easy question. I love mod motors, but the 5.4 is a better boat anchor than powerplant.

i agree.... dohc 4.6 is best engine to go with IMO... get it in all aluminum can make 400+ N/A easy...slap a turbo on it and get ready to be singing the tune of 600+ hp...

yojoe600 · October 13th, 2008, 12:27 PM

what about the 5.4 dohc i thought those where nice

acmillr · October 13th, 2008, 12:31 PM

Originally Posted by yojoe600

what about the 5.4 dohc i thought those where nice

Yeah, they're great for trucks. Everyone hears "5.4" and just assumes that since it's bigger, it's better. Noone ever talks about the small bore and hideous stroke that pile of garbage has.

MikeD05GT · October 13th, 2008, 12:34 PM

Originally Posted by acmillr

Yeah, they're great for trucks. Everyone hears "5.4" and just assumes that since it's bigger, it's better. Noone ever talks about the small bore and hideous stroke that pile of garbage has.

+1 AC. everyone jumps on the 5.4 likes its gods gift to the world...its nice, but like AC said, for a truck....

05roush0090 · October 13th, 2008, 03:03 PM

I have always believed there is no replacement for displacement but like stated just because it is bigger does not necessarily mean better. You have to put together the correct combos, if well educated you should be able to obtain more power out of a bigger displacement engine as to a smaller displacement engine theoretically.

banned · October 14th, 2008, 11:25 AM

if your going to tear down, build and bore a motor the 5.4 4v is better actually....

SAGE · October 14th, 2008, 09:58 PM

My motor will be all brand spankin new. Looking at 351 bore stroked around 427+

94' Cobra 351 · October 27th, 2008, 03:30 AM

How much money do you have to spend? There are advantages to both setups. A mod engine is going to cost more, hands down. I would suggest going with the 351W based engine, especially since you have a 5.0 now, correct? The 351 will bolt right up to your tranny, although the t5 might not last long with it.

They sell aftermarket 351 blocks that are capable of being stroked to 460ci. They also have the same blocks in aluminum, weighing almost 1/2 of the cast iron blocks.

SAGE · November 2nd, 2008, 08:45 PM

correct, going with the 351W base. It's going to be bored somewhere around 427, maybe more...not sure. Going with a Man o War iron block. Going to need a little extra weight with the power it will be putting down.

Ditching the t-5, going with a Viper or T-56.

wraitherx · November 2nd, 2008, 08:56 PM

ive been in your situation when i had my old 89 I rebuilt it to a 347 had her for about a year then ended up selling her for my 4 valve that I have now. I love my cobra but I will admit that i miss the way a well built pushrod feels. I think soon I will be getting another fox but this time instead of a gt im gonna get a notch. So I say PUSHROD FTW but you are on the right track with the MOW block gotta make sure that the block can hang. What is your target HP?

SAGE · November 3rd, 2008, 09:17 PM

It should push 1050hp to the wheels on pump
gas, 1700 on race fuel with boost dialed up....not that I will ever run it that high

BWAL · November 3rd, 2008, 09:26 PM

i wouldn't turbocharge a 427W stroker unless you're looking to run 7's

SAGE · November 3rd, 2008, 10:43 PM

I'm not worried about what it runs...I am just worried about what it will outrun

BWAL · November 3rd, 2008, 10:50 PM

it's safe to say that even a well built naturally aspirated 427 stroker will outrun almost anything you will ever go up against

darrell had a 1990 notch with i think a 425 stroker.. naturally aspirated.. ran 9.3 in the quarter

yojoe600 · November 4th, 2008, 01:39 AM

wow thats nice^

SAGE · November 4th, 2008, 11:48 AM

True, but I have a few vettes, 300Z's and an Evo running around with 800 or so HP to wheels. Got to make sure they get put in thier place.

October 5th, 2008, 10:09 PM	#1
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	Mod motor OR pushrod? Input please I have been milling this over for awhile. I am in a position to choose what motor I am going with in my mustang. I was wondering if some of you could give me some pros and cons of both, and ultimately give me a vote on which would be the best way to go. My choice is going with a 5.4 mod motor, or going with a 351W base that will be bore stroked somewhere around 430. If it helps, this motor will be going in an SN95 and will be turbocharged. All input is appreciated. Thanks.

October 13th, 2008, 12:18 PM	#3
05roush0090 Enthusiast 2005 Mustang GT Roush Join Date: Mar 2008 Location: Indiana Posts: 735 iTrader: 0 reviews	I would rather have pushrod motor as it seems to have less limitations, but then again with all the recent aftermarket advancements for the mod motors valvetrain I guess you could go either way. __________________ 2005 BLACK Mustang GT Roush #05-0090 DOB manifold, m122 SC, gt500 TB, 52lbers, KB BAP, AFCO HE,Brisk plugs, Mac Lt's, Off road x, Roush TVS CAI, Detroit rocker sc grind cams, Brenspeed 93 tune, 10 psi (2.875" pulley) 470rwhp-419ftlbs sae

October 13th, 2008, 12:23 PM	#4
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	This is an easy question. I love mod motors, but the 5.4 is a better boat anchor than powerplant. __________________

October 13th, 2008, 03:03 PM	#9
05roush0090 Enthusiast 2005 Mustang GT Roush Join Date: Mar 2008 Location: Indiana Posts: 735 iTrader: 0 reviews	I have always believed there is no replacement for displacement but like stated just because it is bigger does not necessarily mean better. You have to put together the correct combos, if well educated you should be able to obtain more power out of a bigger displacement engine as to a smaller displacement engine theoretically. __________________ 2005 BLACK Mustang GT Roush #05-0090 DOB manifold, m122 SC, gt500 TB, 52lbers, KB BAP, AFCO HE,Brisk plugs, Mac Lt's, Off road x, Roush TVS CAI, Detroit rocker sc grind cams, Brenspeed 93 tune, 10 psi (2.875" pulley) 470rwhp-419ftlbs sae

October 14th, 2008, 11:25 AM	#10
banned Regular Join Date: May 2007 Posts: 461 iTrader: 0 reviews	if your going to tear down, build and bore a motor the 5.4 4v is better actually.... __________________ Considering selling my car to fund my race car: take a look and tell me what you think. http://www.moddedmustangs.com/forums...ml#post1041280

October 14th, 2008, 09:58 PM	#11
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	My motor will be all brand spankin new. Looking at 351 bore stroked around 427+

October 27th, 2008, 03:30 AM	#12
94' Cobra 351 Regular Join Date: Dec 2006 Posts: 480 iTrader: 0 reviews	How much money do you have to spend? There are advantages to both setups. A mod engine is going to cost more, hands down. I would suggest going with the 351W based engine, especially since you have a 5.0 now, correct? The 351 will bolt right up to your tranny, although the t5 might not last long with it. They sell aftermarket 351 blocks that are capable of being stroked to 460ci. They also have the same blocks in aluminum, weighing almost 1/2 of the cast iron blocks.

November 2nd, 2008, 08:45 PM	#13
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	correct, going with the 351W base. It's going to be bored somewhere around 427, maybe more...not sure. Going with a Man o War iron block. Going to need a little extra weight with the power it will be putting down. Ditching the t-5, going with a Viper or T-56.

November 2nd, 2008, 08:56 PM	#14
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	ive been in your situation when i had my old 89 I rebuilt it to a 347 had her for about a year then ended up selling her for my 4 valve that I have now. I love my cobra but I will admit that i miss the way a well built pushrod feels. I think soon I will be getting another fox but this time instead of a gt im gonna get a notch. So I say PUSHROD FTW but you are on the right track with the MOW block gotta make sure that the block can hang. What is your target HP?

November 3rd, 2008, 09:17 PM	#15
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	It should push 1050hp to the wheels on pump gas, 1700 on race fuel with boost dialed up....not that I will ever run it that high

November 3rd, 2008, 09:26 PM	#16
BWAL MSTRB8N & MDR8N 2021 Mustang V15 Quad Turbo with nawz Join Date: Nov 2006 Location: On The Shaft Posts: 19,662 Blog Entries: 2 iTrader: 4 reviews	i wouldn't turbocharge a 427W stroker unless you're looking to run 7's __________________ MM 1 am boner crew Cars and mod list in garage i like veiny meat sliding between my buttcheeks

November 3rd, 2008, 10:43 PM	#17
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	I'm not worried about what it runs...I am just worried about what it will outrun

November 3rd, 2008, 10:50 PM	#18
BWAL MSTRB8N & MDR8N 2021 Mustang V15 Quad Turbo with nawz Join Date: Nov 2006 Location: On The Shaft Posts: 19,662 Blog Entries: 2 iTrader: 4 reviews	it's safe to say that even a well built naturally aspirated 427 stroker will outrun almost anything you will ever go up against darrell had a 1990 notch with i think a 425 stroker.. naturally aspirated.. ran 9.3 in the quarter __________________ MM 1 am boner crew Cars and mod list in garage i like veiny meat sliding between my buttcheeks

November 4th, 2008, 11:48 AM	#20
SAGE Regular 1995 GT/TC7 Join Date: Jul 2008 Location: Chattanooga, TN Posts: 124 iTrader: 1 reviews	True, but I have a few vettes, 300Z's and an Evo running around with 800 or so HP to wheels. Got to make sure they get put in thier place.

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