351w HP CAP..

Smoph · April 18th, 2007, 01:17 AM

Im considering swaping my shortblock for a 351w was curious of what the HP capacity would be on the 351 i know the 302 has about a 475-500 max cap was wondering about the 351 block though

MSO · April 18th, 2007, 03:25 AM

its about the same but u can get an older block (like pre-'72) cuz htose got stronger webbing in the block and can stand more HP

1slo5.0 · April 18th, 2007, 03:46 AM

Newer 351W blocks (after 1977 or so) are weak. Older (1977 and earlier) can handle about 700 if you don't turn them to hard.

94' Cobra 351 · April 18th, 2007, 04:22 AM

I have a 73' 351W, and it's a two bolt main so I am hesistant to make a ton of power with it. Is this something I should be worried about or no?

Is there such a way to strengthen or convert it to a 4 bolt or even 8 bolt?

86er · April 18th, 2007, 08:39 AM

Originally Posted by 94' Cobra 351

I have a 73' 351W, and it's a two bolt main so I am hesistant to make a ton of power with it. Is this something I should be worried about or no?

Is there such a way to strengthen or convert it to a 4 bolt or even 8 bolt?

only aftermarket blocks are 4 bold mains, Unless you splay the caps, 2 bolt is all your gonna find, and will hold the power just fine

1slo5.0 · April 19th, 2007, 09:09 AM

Originally Posted by 94' Cobra 351

I have a 73' 351W, and it's a two bolt main so I am hesistant to make a ton of power with it. Is this something I should be worried about or no?

Is there such a way to strengthen or convert it to a 4 bolt or even 8 bolt?

8 bolt? If you make enough power to worry about 4 bolt mains then you need an aftermarket block. Putting 4 bolt mains on a production block is a waste.

I have a 1974 2 bolt production block and make over 700hp.

April 18th, 2007, 01:17 AM	#1
Smoph Newbie Join Date: Mar 2007 Posts: 26 iTrader: 0 reviews	351w HP CAP.. Im considering swaping my shortblock for a 351w was curious of what the HP capacity would be on the 351 i know the 302 has about a 475-500 max cap was wondering about the 351 block though

April 18th, 2007, 03:25 AM	#2
MSO Banned Join Date: Jul 2006 Location: アメリカ Posts: 5,933 iTrader: 0 reviews	its about the same but u can get an older block (like pre-'72) cuz htose got stronger webbing in the block and can stand more HP __________________ [SIGPIC][/SIGPIC] [SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE] Edited By Moderator. Next time will be a ban.

April 18th, 2007, 03:46 AM	#3
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Newer 351W blocks (after 1977 or so) are weak. Older (1977 and earlier) can handle about 700 if you don't turn them to hard. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

Threads Similar to: 351w HP CAP..
Thread	Thread Starter	Forum	Replies	Last Post
302 351w	notsoslow50	5.0 Mustangs	6	July 26th, 2007 12:14 AM
11 Second 351w	drthunder7	5.0 Mustangs	21	May 27th, 2007 11:06 AM
351w	dragpipe	General Tech	2	May 2nd, 2007 07:53 AM
351w	FastBack71	94-95	6	February 4th, 2007 03:40 PM
351w ecu?	5-0stank	5.0 Mustangs	6	January 7th, 2007 01:13 AM

April 18th, 2007, 04:22 AM	#4
94' Cobra 351 Regular Join Date: Dec 2006 Posts: 480 iTrader: 0 reviews	I have a 73' 351W, and it's a two bolt main so I am hesistant to make a ton of power with it. Is this something I should be worried about or no? Is there such a way to strengthen or convert it to a 4 bolt or even 8 bolt?

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

All times are GMT -4. The time now is 01:34 AM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.