5.0 heart transplant

thetrex

New Member
Joined
Mar 27, 2014
Messages
41
Reaction score
0
Location
Oklahoma




How would you build a semi-budget carbed 302 to put in a sub 2,500 pound chassis?

Long story short, I've never been a hardcore import guy, but for some reason I fell in love with the shape of the early Z cars in my college years. So, after surfing craigslist one night, I decided to buy this hunk o' junk for $500. Since then, it has been sitting in my driveway for the last year and a half deteriorating. I am ready to get this damn thing running/driving in 2017, but I need a game plan. It's a number matching car and I debated rebuilding the straight 6, but that was not my intention when I bought it. This car NEEDS a V8.

Recently, I acquired a $50 roller 302 long block from an 94 F-150 and that will be my starting point.


 

96blak54

Moderator
Staff member
Staff
Joined
Feb 21, 2011
Messages
15,616
Reaction score
6,519
Location
Lawrenceburg Kentucky
Id leave that car alone! Or rebuild back to stock. The following with those cars is phenomenal! You'd get more from the car keeping it original.

Anyhow, if the 302 is a good engine, set the car up for it and move forward. When its running great....then build the engine.
 

evilcw311

Most Evil Member!
SN95 Supporter
Joined
May 9, 2010
Messages
7,453
Reaction score
2,153
Location
Louisville, KY
Id leave that car alone! Or rebuild back to stock. The following with those cars is phenomenal! You'd get more from the car keeping it original.

Anyhow, if the 302 is a good engine, set the car up for it and move forward. When its running great....then build the engine.

I don't see the logic in leaving it alone. Too many times do I see guys drop Chevy engines in old school Ford street rods and even in our newer mustangs so why not drop a strong 302 in a Nissan?!?! [emoji23]


Sent from my iPhone using Tapatalk
 

lutter94

Well-Known Member
Joined
Apr 11, 2008
Messages
3,065
Reaction score
183
Location
South Dakota
I've seen some LS swapped Datsuns that people drool over. No reason not to throw a 302W at one! Looking forward to this build.
 

ReplicaR

Well-Known Member
Joined
Mar 2, 2007
Messages
3,506
Reaction score
549
I've seen some LS swapped Datsuns that people drool over. No reason not to throw a 302W at one! Looking forward to this build.

A few reasons actually. Stock for stock literally double the power, more efficient, lighter, and more technologically advanced. They are more money up front, but not enough to make a huge difference in terms of this swap.
 

g36 monkey

Post Whore
Joined
Nov 15, 2008
Messages
14,079
Reaction score
618
Location
Orlando, Fl
A few reasons actually. Stock for stock literally double the power, more efficient, lighter, and more technologically advanced. They are more money up front, but not enough to make a huge difference in terms of this swap.

He did get the motor for $50. Even if he scored an LS for a grand, that's literally 20 times the cost, and I don't see them going for that very often.

Though, I would like an LS swap too.

Just do some rust prevention. You can feel it rusting in the pictures lol.

Excited for this build.
 

95opal

Well-Known Member
Joined
Jun 21, 2007
Messages
4,008
Reaction score
3,132
$50 302 block
Set of used heads
Used Edlebrock performer carb intake
Holley 650
Used comp cam
Dont forget to change the dizzy gear and correct dizzy.
Post updates along the way
 

07GtS197

Well-Known Member
Joined
Mar 16, 2015
Messages
4,011
Reaction score
2,907
Location
Fort Myers, Fl
All 86+ 302s are roller acceptable blocks but the crown vic and truck 302s used flat tappet cams so you will need to convert it if you want to use a roller cam. I have read that some roller blocks that are already set up were installed in f150s but thats hearsay so Id check before swapping cams. The water pump is a reverse rotation due to the belt drive setup.

Thats going to be one badass ride!
 
OP
OP
thetrex

thetrex

New Member
Joined
Mar 27, 2014
Messages
41
Reaction score
0
Location
Oklahoma
A few reasons actually. Stock for stock literally double the power, more efficient, lighter, and more technologically advanced. They are more money up front, but not enough to make a huge difference in terms of this swap.

I would love to shove an LS in this car, but the initial cost is holding me back. And then I'd have to source a T-56 and those are still selling for a pretty penny.


How's the underneath? The old Z cars like to rust from the bottom up.

Honestly, its not too bad for 70's Japanese metal. It needs a floor pan patch in the drivers side and part of a frame rail/patch in the passenger side. Most of the Oklahoma cars I looked at all needed floors to some extent.
 

RichV

Well-Known Member
Joined
May 6, 2012
Messages
4,230
Reaction score
254
Location
CO
All 86+ 302s are roller acceptable blocks but the crown vic and truck 302s used flat tappet cams so you will need to convert it if you want to use a roller cam. I have read that some roller blocks that are already set up were installed in f150s but thats hearsay so Id check before swapping cams. The water pump is a reverse rotation due to the belt drive setup.

Thats going to be one badass ride!

This isn't true. Non-HO does not mean it's not roller. IIRC any factory EFI 302 is roller, HO or not. The cam decides HO/non and firing order.

On the project,

I would suggest NOT hacking the car up. The 240Z is a iconic Nissan and getting very hard to find, especially rust free and not hacked up. They are commanding some decent money. The engines in them don't have a cross flow head which greatly hinders HP, but if you want to mod it, I would stay with a Nissan power plant, maybe a turbo I6??

It would be like LS swapping a Terminator. That's my .02 anyway!!
 

07GtS197

Well-Known Member
Joined
Mar 16, 2015
Messages
4,011
Reaction score
2,907
Location
Fort Myers, Fl
This isn't true. Non-HO does not mean it's not roller. IIRC any factory EFI 302 is roller, HO or not. The cam decides HO/non and firing order.

On the project,

I would suggest NOT hacking the car up. The 240Z is a iconic Nissan and getting very hard to find, especially rust free and not hacked up. They are commanding some decent money. The engines in them don't have a cross flow head which greatly hinders HP, but if you want to mod it, I would stay with a Nissan power plant, maybe a turbo I6??

It would be like LS swapping a Terminator. That's my .02 anyway!!

There was only one flat tappet HO and it was in the 85 Mark 7 or TB. All of the 5.0s used in the trucks, ltd crown vics and its mercury and lincoln counterparts used the LoPo 5.0 with flat tappet cams.

All 302's in all the applications I listed and maybe the mustang were flat tappet until the 86 model year but the LoPo cars were still flat tappet but could come with the hardware to run a roller cam.

I used to own an 85 ltd crown vic and it had a LoPo 5.0 with a flat tappet cam. My buddy has an 87 grand marquis with a LoPo 5.0 with a flat tappet cam.
 

RichV

Well-Known Member
Joined
May 6, 2012
Messages
4,230
Reaction score
254
Location
CO
I know birds/trucks/vics etc, were a mix in the mid 80's, during the switch, of flat/rollers until they were all rollers, but Mustangs had roller from 85+, not 86. A buddy recently sold a 86 5.0 bird, non-ho, but it was a roller. Years of being on FEP forums is where my knowledge comes from. What are you referring to LoPo??? Never heard that term.
 

07GtS197

Well-Known Member
Joined
Mar 16, 2015
Messages
4,011
Reaction score
2,907
Location
Fort Myers, Fl
I know birds/trucks/vics etc, were a mix in the mid 80's, during the switch, of flat/rollers until they were all rollers, but Mustangs had roller from 85+, not 86. A buddy recently sold a 86 5.0 bird, non-ho, but it was a roller. Years of being on FEP forums is where my knowledge comes from. What are you referring to LoPo??? Never heard that term.

Even into the 90s they were all mixed in non mustang applications that were non HO. Some trucks got roller blocks but still needed to be tapped for the taller lifter bores and spider. In mid 85 Ford intergraded roller blocks but 86 was the first year in which Ford completely swapped over, with the 302 anyway. I have firsthand experience with this. And to be clear my 85 was a cfi and a non rollerz

LoPo is another name for the non ho 302.
 

Forum statistics

Threads
78,531
Messages
1,535,675
Members
16,185
Latest member
dmen76

Members online

Top