HOME MAGAZINE FORUM RULES SPONSORS CONTACT
     
   
   
 
Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech

Reply
 
Thread Tools Display Modes
Old 04-03-2018, 06:59 PM   #1
kevin54
Junior Member
 
Join Date: Mar 2018
Posts: 3
Default Engine size change

I have a 1978 Mercury Cougar with a 351w 2brl that should run in Q/SA. I would like to know If I could change to a 302 2brl and run U/SA?
If I can change to a 302 will the short block have to be a 1978 or is there some leeway on the year? I understand that the Intake, carb and heads year and model specific. I'm new to the Forum Thank you for your help.
kevin54 is offline   Reply With Quote
Old 04-03-2018, 08:59 PM   #2
David Lee
Senior Member
 
Join Date: Oct 2007
Posts: 702
Default Re: Engine size change

Quote:
Originally Posted by kevin54 View Post
I have a 1978 Mercury Cougar with a 351w 2brl that should run in Q/SA. I would like to know If I could change to a 302 2brl and run U/SA?
If I can change to a 302 will the short block have to be a 1978 or is there some leeway on the year? I understand that the Intake, carb and heads year and model specific. I'm new to the Forum Thank you for your help.

yes you can change the engine, the block does not have to be from the year, but the pistons have to be of the same compression and configuration. What part of the country are you?
David Lee is offline   Reply With Quote
Old 04-04-2018, 01:50 AM   #3
jmantle
Member
 
Join Date: Feb 2008
Location: Black Creek, BC Canada
Posts: 185
Default Re: Engine size change

Quote:
Originally Posted by kevin54 View Post
I have a 1978 Mercury Cougar with a 351w 2brl that should run in Q/SA. I would like to know If I could change to a 302 2brl and run U/SA?
If I can change to a 302 will the short block have to be a 1978 or is there some leeway on the year? I understand that the Intake, carb and heads year and model specific. I'm new to the Forum Thank you for your help.
It's in the guide at 139 HP and 27 pounds per HP. I doubt if you could get it light enough to be competitive even with the soft HP rating.

Jim Mantle V/SA 6632
jmantle is offline   Reply With Quote
Old 04-04-2018, 06:59 AM   #4
kevin54
Junior Member
 
Join Date: Mar 2018
Posts: 3
Default Re: Engine size change

Thank you I live in western Washington state. I am retiring and want a to get back in to racing. I last raced over 40 years ago with a D/A. I just want to enjoy the sport again. I have work as a mechanic for 47 years so I an do in-house engine ,trans and rear end. any advice would be happily excepted.
kevin54 is offline   Reply With Quote
Old 04-04-2018, 08:26 AM   #5
BBF67
Junior Member
 
Join Date: Dec 2001
Posts: 79
Default Re: Engine size change

Go for it. Based on the ET of the U/SA no. 1 qualifier at Indy you should be able to run -.68 under the U/SA index if you keep the car at factory shipping weight. If you take out 300 lbs, you would be -1.00 second under and still be 700 lbs heavy for the class.
BBF67 is offline   Reply With Quote
Old 04-04-2018, 09:43 AM   #6
Carguy49
Senior Member
 
Join Date: Aug 2011
Location: Fife, Washington
Posts: 780
Default Re: Engine size change

Good luck on your project. I would get ahold of Brian Seaberg. He lives in Belfair Washington. He is on here - user name is B/S 428. Brian runs a 72 Comet in U/SA and that car is fast. He can help you as much as anyone locally. Brian is scheduled to be at Las Vegas this weekend. Again, good luck with your car, sounds like fun.
__________________
Ron McDowell - Did Race
Still a BIG fan
Carguy49 is offline   Reply With Quote
Old 04-04-2018, 11:15 AM   #7
FireSale
Senior Member
 
FireSale's Avatar
 
Join Date: Feb 2014
Location: Lakewood Washington
Posts: 980
Default Re: Engine size change

Lotta Ford stockers out here in the NorthWest and a well organized Stock/SuperStock Combo series run at Pacific Raceways (primarily) with some runs at Bremerton and Woodburn, Oregon. Build it and run. I hope to sneak my Mustang in as SS/CS if I get it right.

Unless you intend to run just NHRA National and Lucas Oil races for points and Wallies, I think the emphasis on the hunt for the most competitive package is over rated. A good combo like a Formula Firebird or Comet might get a by as number 1 qualifier, but beyond that it's all a bracket race.

As another retired guy, I'm done with the stands. Give me the lanes.
__________________
Dale Shearon
68 Mustang 6394
FireSale is offline   Reply With Quote
Old 04-04-2018, 12:06 PM   #8
Mark Yacavone
Sponsor
 
Mark Yacavone's Avatar
 
Join Date: Mar 2002
Location: Mayer , a fur piece up the road...
Posts: 4,771
Default Re: Engine size change

Quote:
Originally Posted by BBF67 View Post
Go for it. Based on the ET of the U/SA no. 1 qualifier at Indy you should be able to run -.68 under the U/SA index if you keep the car at factory shipping weight. If you take out 300 lbs, you would be -1.00 second under and still be 700 lbs heavy for the class.
No, no ,no..Bad idea all around.
I hope nobody thinks the no. Q at Indy has a 2.45 low C4 with a rebuild kit in it...?
You'd be able to buy 5 of the right cars for a 302 2v, for what a trans would cost to make that Cougar work @ 800# overweight.
If you don't have a 302, get one along with a body style that weighs less than 3000#.
351 2v , no bargain either. Might run a few under in R/SA ..Still a two ton tank.
I'd suggest putting that Cougar away with the family heirlooms, and let's get serious here.
__________________
"We are lucky we don't get as much Government as we pay for." Will Rogers
Mark Yacavone is offline   Reply With Quote
Old 04-04-2018, 02:39 PM   #9
kevin54
Junior Member
 
Join Date: Mar 2018
Posts: 3
Default Re: Engine size change

Thank you All I will have to do some thinking on a good direction to go. Will run local for the most part. I want to enjoy the sport again may go with R/SA see how it goes I want to keep it fun. I know I will enjoy the people on this forum Thank's again
kevin54 is offline   Reply With Quote
Old 04-04-2018, 07:58 PM   #10
Dave Noll
Member
 
Dave Noll's Avatar
 
Join Date: Nov 2007
Location: Div. 6, Central WA
Posts: 402
Default Re: Engine size change

Quote:
Originally Posted by FireSale View Post
a well organized Stock/SuperStock Combo series run at Pacific Raceways (primarily) with some runs at Bremerton and Woodburn, Oregon.
Dale, I don`t see anything on the Pacific schedule about this. I see on NHRADIV6 the National Opens are in Bremerton, Mission, Edmonton and Medicine Hat this year. Is there something different that you are referring to?
__________________
Dave Noll, N/SA 6526
Dave Noll is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 12:53 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.Ad Management plugin by RedTyger