71 302 build - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-19-2013, 02:05 PM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
71 302 build

So my 71 has the too small for the car 302 not the Cleveland as i was told. Kinda disappointed but It only needs a new door which It came with so I guess It not bad

302 grabber Blue convertible auto has to be worth something


Anyways whats the best tricks to get more out of the 302 Id love to be about 300 horses and decent handling

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-20-2013, 09:12 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 8,705
Wiki Edits: 0

Thanks: 17
Thanked 284 Times in 264 Posts
Swap in a 5.0L HO engine with a small turbo, a single 60 or so. Easiest, cheapest 500hp you can do with a 302.

For the low low prices of 5.0l engines I wouldn't even take the valve cover off the one you have. Just pull it and swap. For your ecu I'd go mega squirt though you can try fussing with the stock one.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-20-2013, 10:02 AM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,870
Wiki Edits: 8

Thanks: 13
Thanked 185 Times in 166 Posts
A non roller camshaft, pre 1986 302 can be updated and modified for many more horespower. Unfortuantely you will be throwing away everything but the block to get to that point plus spending a heluva lot of bucks. Either a 5.0L '87 up roller cammed engine with a set of some version GT40 head or a 351W, also roller cammed (1995-1996 Ford truck with F4TE block) and with a decent set of heads can be used in that engine compartment, both physically interchangeable though not all engine parts are. Add a decent 4 bbl carb, use one of Ford's letter camahfts and you will be right in the ballpark. Whatever way you go, you do need to do your homework with any engine and Ford's often being more 'interesting'. Just be really careful with anything that says 'Cleveland' or 'Modified'. as these engines tend to be even more 'interesting' then the 'W' series though with the right mods are fantastic performers but tend to get expensive. I would not add a turbo/supercharger to any SB Ford(302) unless it was a Ford Racing, Mexican or Australian block
__________________
Irelands child
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-20-2013, 12:16 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 8,705
Wiki Edits: 0

Thanks: 17
Thanked 284 Times in 264 Posts
Why no turbo? It's been done a lot and seems like the easiest, cheapest, and safest way to make power in this situation. I would also just keep the efi intake on an HO engine instead of spending all that money to downgrade to a carb.

JMO though.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-20-2013, 01:22 PM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,870
Wiki Edits: 8

Thanks: 13
Thanked 185 Times in 166 Posts
Quote:
Originally Posted by ap72 View Post
Why no turbo? It's been done a lot and seems like the easiest, cheapest, and safest way to make power in this situation. I would also just keep the efi intake on an HO engine instead of spending all that money to downgrade to a carb.

JMO though.
OEM Ford 302's tend to be pretty puny with their much heralded thin wall casting with many literally splitting in half. Yeah, those are very stressed and modified. Also with a used (abused?) salvage yard block, you have little knowledge of past life. Where they split is between the first main and the first camshaft bearing, and is not an unusual thing. Any of these salvage yard SB Fords need to have at least a minimum of a dye check with even more testing like mag particle if any questions.

As far as keeping an EFI, not a bad idea if the entire system is included with the engine purchase. Unfortunately, the only pieces you normally will get from a junk yard will be what's on the engine. The best way is to buy a complete running car. After market wiring/sensors/computers is not an inexpensive proposition, even stock replacement parts, and why I suggest a carb = and of course there are drawbacks such as possibly needing a front sump oil pan and oil pick up, different timing housing, fuel pump eccentric just to name a few things. I do run SB Fords (5.0's mostly and have gone through most of these pains)
__________________
Irelands child
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-20-2013, 04:19 PM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Its got a edlebrock intake and a holley in It.

It doesnt have a air cleaner on It right now but If I start It up with the hood all the way up oil hits the hood. What might It be
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-20-2013, 04:30 PM
jokerZ71's Avatar
Wrench Turner
 
Last photo:
Join Date: Jun 2013
Location: Stanton,Tn.
Age: 52
Posts: 1,835
Wiki Edits: 0

Thanks: 115
Thanked 316 Times in 283 Posts
Quote:
Originally Posted by Irelands child View Post
OEM Ford 302's tend to be pretty puny with their much heralded thin wall casting with many literally splitting in half. Yeah, those are very stressed and modified. Also with a used (abused?) salvage yard block, you have little knowledge of past life. Where they split is between the first main and the first camshaft bearing, and is not an unusual thing. Any of these salvage yard SB Fords need to have at least a minimum of a dye check with even more testing like mag particle if any questions.

As far as keeping an EFI, not a bad idea if the entire system is included with the engine purchase. Unfortunately, the only pieces you normally will get from a junk yard will be what's on the engine. The best way is to buy a complete running car. After market wiring/sensors/computers is not an inexpensive proposition, even stock replacement parts, and why I suggest a carb = and of course there are drawbacks such as possibly needing a front sump oil pan and oil pick up, different timing housing, fuel pump eccentric just to name a few things. I do run SB Fords (5.0's mostly and have gone through most of these pains)
I've had the experience of seeing 302 blocks cracking from just sitting.In my experience,i've seen cracks mostly @ the rear of the block.Usually from the crank & outwards of it.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-25-2013, 08:58 PM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
It still got the factory motor in It. How much power on average does a holley and edlebrock performer Add numbers wise
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 07-26-2013, 01:26 AM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,649
Wiki Edits: 0

Thanks: 2
Thanked 80 Times in 73 Posts
Compared to the factory two barrel intake the Performer and Holley probably gained you about 10-12 HP The only advantage of the standard Performer intake over a stock 4 barrel is a weight savings of about 22 lbs.Your '71 was one of the first years for smog motors with retarded camshaft timing and the crappy Thermo bump heads and dual diaphram retard distributors.The best thing you should do is is address these issues with a camshaft change and better heads and ignition.So lets start here:Six Budget Ford Heads That Work - Car Craft Magazine Since you stated on another post you mentioned you still wanted good mileage so actually the best priced Flo-Tek heads could work in your favor keeping in mind the weight of your car it takes torque to move weight so this is my suggestion for a camshaft:http://www.summitracing.com/parts/hr...view/make/ford I have it in my cruiser the bottom end and mid-range is very good it will pull up to 6,000 RPM no problem with the RPM intake I have your Performer intake will still have good low and midrange power.The weak link in SBF Fords is getting them to breathe, so the extra exhaust duration in this cam and better heads will help you with your goal for a distributor that is reliable and budget friendly and EZ to hook up go this route:http://www.summitracing.com/parts/sum-850022 all it needs is a 12 volt source and it's a done deal.Now let's address the advice given above,for up to 400 HP the later roller blocks are OK above that it gets scary your '71 block has more beef not as much as the prefered Mexican block but it will get the job done.Camshaft break in is critical with a flat tappet hydraulic as opposed to a roller cam but that is easily addressed.With the better heads and Cam you will need headers to enhance the package.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 07-26-2013, 10:26 AM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Is there anything at the junkyard that might be of decent use?
I was thinking If I could get a 351 windsor cheap It would get decent mileage as i wouldnt have to press the skinny pedal so hard to get moving.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 07-26-2013, 11:25 AM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,870
Wiki Edits: 8

Thanks: 13
Thanked 185 Times in 166 Posts
Quote:
Originally Posted by strokermax View Post
Is there anything at the junkyard that might be of decent use?
I was thinking If I could get a 351 windsor cheap It would get decent mileage as i wouldnt have to press the skinny pedal so hard to get moving.
You can't have your cake as well as eat it. A 351W is NOT an economy engine in any shape or form. It takes more air and fuel mixture to fill those extra 49 cubic inches, all of which enter and exit though the same basic design intake, heads and exhaust as your 302 and turning a higher rotating mass, larger bearing engine. You have to decide if you want gas mileage or performance - and a 351W has seldom ever been chosen as a mileage miser.
__________________
Irelands child
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 07-26-2013, 12:18 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,649
Wiki Edits: 0

Thanks: 2
Thanked 80 Times in 73 Posts
Or just get out the plastic and order this:Ford 302 320 HP High Perf Balanced Crate Engine | eBay
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 07-26-2013, 02:32 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by strokermax View Post
It still got the factory motor in It. How much power on average does a holley and edlebrock performer Add numbers wise
Biggest bang for the buck performance-wise is prolly a lower rear gear ratio.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 07-26-2013, 03:41 PM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I Wanna keep whatever ratio in It maybe go a tad higher.

But the car weighs basically 4k so If I have wind the 302 harder and higher then a 351 to push the same amount of mass wouldnt I save money.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 07-29-2013, 11:51 AM
strokermax's Avatar
Registered User
 
Last photo:
Join Date: Feb 2013
Posts: 102
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ill have to search the junkyard for stuff
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
302 build questions RX5.0 Engine 1 10-18-2011 07:27 PM
302 build help slow'n'steady Engine 4 08-04-2007 11:04 AM
Some help with a 302 build mr.Pinto Engine 8 07-14-2007 03:36 PM
How to build a 302 d_67_camaro Engine 43 12-01-2004 06:39 AM


All times are GMT -6. The time now is 04:34 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.