what engine to put in a 71 nova - 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> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-15-2006, 06:44 PM
Registered User
 
Last photo:
Join Date: Mar 2006
Location: tennessee
Posts: 186
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
what engine to put in a 71 nova

hey fellas, just wonderin what engine i should put in this beast. i was leaning toward a 427 small block, but there is no substitution for a big blocks raw power. i can get a 496 short block for 3950 bucks, and a 427 short block for 3500. what would you guys go with? p.s. this will be an aluminum headed engine with either a victor or rpm air-gap intake.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-15-2006, 07:23 PM
copndoc3's Avatar
Retired Super Trooper
 

Last journal entry: The Uncommon Street Rod - Photoshoot
Last photo:
Join Date: Dec 2005
Location: NC
Age: 66
Posts: 52
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
If it's raw big block power your after, I'd put a 500 cid Cadillac mill in it. You'll have torque out the ying-yang and it will idle like a ***** cat. The perfect sleeper. And it's not much heavier than a small block.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-15-2006, 09:29 PM
firestone's Avatar
http://teamrfc.gospelcom.net
 
Last photo:
Join Date: Nov 2003
Location: Fenton MI
Age: 32
Posts: 1,743
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
I would go with a 496. What heads are you going with?

Here is a combonation to think about:
http://airflowresearch.com/articles/article52/A-P1.htm

Adam
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-15-2006, 09:36 PM
rick458's Avatar
Wookie
 
Join Date: Sep 2003
Location: La Porte Texas
Age: 50
Posts: 244
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I Just like 427s
what did the car come with?
__________________
Rich

77 Impala
74 260Z (a Work in SLOW Progress)
69 Big Block Chevelle (long gone)
Semper Fi My Brothers
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-19-2006, 01:23 PM
Registered User
 
Last photo:
Join Date: Mar 2006
Location: tennessee
Posts: 186
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
origonal engine

it originally came with a 250 straight six. i'm also considering a 383 stroker. the cadillac engine is great, but i want to keep this engine chevy oriented. no real reason, i just like it better that way. i don't know the gear ratio other than it is a 6 cyl rear end. i'm taking plenty of time to ensure that this car is all stock............................................. .....................except under the hood
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 03-19-2006, 01:31 PM
steve t's Avatar
ex biker, now hotrodder
 
Join Date: Mar 2005
Location: NC
Age: 64
Posts: 863
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
you may have to update that 6 cyl rearend if you go a lot of h p
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 03-20-2006, 05:02 PM
Registered User
 
Last photo:
Join Date: Mar 2006
Location: tennessee
Posts: 186
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
rear end

i will. it will more than likely be around 450hp/460tq
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 03-20-2006, 05:10 PM
Member
 
Last wiki edit: Ford axle ratio codes
Last journal entry: Rear Suspension
Last photo:
Join Date: Aug 2005
Location: Prattsville
Posts: 6,352
Wiki Edits: 31

Thanks: 2
Thanked 53 Times in 49 Posts
the original rear end should be a 4.11, open rear end, might be a little weak.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 03-20-2006, 10:34 PM
Member
 
Last photo:
Join Date: May 2003
Location: Shreveport LA
Age: 64
Posts: 5,103
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
If the rear end is original it should be an 8.2" 10-bolt with 3.08 or maybe 2.73 gears. Not the strongest rear end, but not really weak, either. Some 350 cars got them. Slicks & a big-block would probably kill it, though.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 03-24-2006, 06:50 PM
Registered User
 
Last photo:
Join Date: Mar 2006
Location: tennessee
Posts: 186
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
rearend

if it is weak, what would be a good gear for 6500 rpm, and positive traction? i do not want to tub this car, id rather just have a 60 or 50 on the back. i can get a complete 383 out of comp. products for 3000 "long block" is this a good engine, or should i go with something else. ive also saw a 383 reman recon. is this a good engine or is this junk. i'm new to the hot rod game and don't want to make a huge mistake. i really want to do it once and be done with it. all of you pros out there please,please,please help me.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 03-24-2006, 08:25 PM
Paul Suburban Murray's Avatar
Blazer Paul
 
Join Date: Mar 2006
Location: Largo, Florida
Age: 51
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
454 Crank in SBC

I read in a back issue of Hot Rod Magazine where on a bet a gentleman had a SBC 350 ground out for a 454 BBC Crank to be installed, this created a higher stroke, BBC power and torque, SBC miledge, and low 1/4 mile times. All in all an interesting idea. However I must say I would much rather a SBC 350 4bolt. You see SBC's runs cooler in general then BBC's, and SBC's are smaller therefore you have a little more room under the hood.
Paul
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 03-24-2006, 08:55 PM
Registered User
 
Join Date: Mar 2006
Location: Houston, TX
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
re: what engine to put in a 71 nova

For what it's worth, I just dropped a factory GM Performance 350 long block in my '70 Cutlass...dressed it out with racing components.....830 CFM carb and the power is awesome. I've heard the GM performance 383 Stroker will make you smile all day. The 350 cost me $1900 from a friend who owns a dealership. I believe the 383 sells for around $2800. For everyone I had talked to, the GM performance long blocks are very reliable.

Hope it helps,

Dane
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 03-28-2006, 10:11 AM
Registered User
 
Last photo:
Join Date: Mar 2006
Location: tennessee
Posts: 186
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thanks

you guys are great, everyone who has helped me. is a 383 a good engine for a nova that will never be put on the track? or should i go with a built 350?
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 03-28-2006, 11:22 AM
Hippie's Avatar
Analog man in a digital world.
 

Last journal entry: HEI comparison.
Last photo:
Join Date: May 2003
Posts: 2,255
Wiki Edits: 0

Thanks: 3
Thanked 5 Times in 5 Posts
Quote:
Originally Posted by backyard71nova
you guys are great, everyone who has helped me. is a 383 a good engine for a nova that will never be put on the track? or should i go with a built 350?
Either one would work well, I personally prefer 383's for the low end torque. '71-'77 Novas and their GM counterparts used the 8.5" 10 bolt. These are plentiful and with a little work as strong as most 12 bolts. Unless you tub it ( don't blame you for not wanting to ) you'll have to do some massaging to get any tire to speak of under it but if you get the suspension working right it will hook pretty well on a 9" slick. Forget about 60's with any height to them for the street unless you want to jack it up 70's style.

I'd love to have another Nova one of these days, I kick myself for selling my '70. It was a Fathom Green SS396/350HP/4 speed with black bucket seat interior. Guy I sold it to in the early 80's cut it up for a Super Gas bracket car......
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 03-28-2006, 12:25 PM
firestone's Avatar
http://teamrfc.gospelcom.net
 
Last photo:
Join Date: Nov 2003
Location: Fenton MI
Age: 32
Posts: 1,743
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
I would consider either of the motors below. The 383 with a fairly mild hyd flat tappet cam will make minimum 450 hp and 450 tq.

below is from http://www.revolutionaryperformance.com/
Street/Strip Stroker AFR Upgrade SBC 383 4 bolt main block, Eagle cast steel 3.75" crank, Eagle SIR 5.7" rods, KB Performance or Sealed Power hypereutectic 9.6:1 pistons, Sealed Power rings, solid or hydraulic flat tappet cam, double roller timing set, new balancer and flexplate, pushrods, Air Flow Research 195cc heads, HP springs, locks, and seals, aluminum race series 1.6 rocker arms standard $4,149.

Here are a couple of motors to compare to
http://airflowresearch.com/dyno/chevy_dyno.htm


I would recommend the 496 though. I am currently in the process of building a 10:1 oval port headed 496. My heads are 049's with a full port job and my cam is 248 245 @.050 ~.680 lift solid roller. That may be a little agressive for what you are after, but comparing this to similar combonations, it should be around 600 hp and 600 tq. I also know of a 468 with 9.5:1 compression and cleaned up 049's along with a 242 @.050 hyd roller cam that made 560 hp and 560 tq on an engine dyno.

Adam
Reply With Quote Quick reply to this message

Recent Engine 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
350 engine swap 71 pickup Batmat Engine 4 01-02-2006 12:11 PM
Put back together engine but it runs like ****. 61ChevyTruck Engine 2 01-25-2005 10:53 AM
white smoke and engine dropping revs when put into gear andybird Engine 2 06-24-2003 12:01 AM
I want to put 7 grand into my engine neil madsen Engine 35 02-28-2003 06:07 PM
Need Wiring Diagram for 71 Nova sonicse Electrical 5 01-24-2003 12:24 PM


All times are GMT -6. The time now is 02:32 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.