429 Scj
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429 Scj
I currently own a 1970 F-150 and I'am able to get my hands on a 429 SCJ block.
I would like to get 700 HP out of this motor by doing most of the work myself. I just do not have much big block experience and I could use some advice.
I would like to get 700 HP out of this motor by doing most of the work myself. I just do not have much big block experience and I could use some advice.
Post Fiend
Joined: Mar 2003
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From: Sarnia, Ontario, CANADA!
Hi and welcome to FTE! Be sure to read this to help you around this site: https://www.ford-trucks.com/forums/s...d.php?t=300691 There are also State, Provincial and International Chapters located near the bottom of the main forum page.
We are glad to have you. Hope you enjoy the site. Check out the various forums. Lots of great info for you.
Thread moved to 429 Engine forum.
See ya on the boards!
-Matt
We are glad to have you. Hope you enjoy the site. Check out the various forums. Lots of great info for you.
Thread moved to 429 Engine forum.
See ya on the boards!
-Matt
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If it's truly an SCJ block, I'd be tempted to save it for something else.
Just make sure it's REALLY an SCJ. Unfortunately, every 429 tends to be an SCJ when someone is trying to sell it. True SCJ blocks are relatively rare and not something someone will let go of for very cheap unless it is well and truly trashed. Get the casting code to verify.
In any case, even a standard block will handle 700 HP without breaking a sweat (or anything else important or expensive). Plus, they are plentiful and cheap.
Brad
Just make sure it's REALLY an SCJ. Unfortunately, every 429 tends to be an SCJ when someone is trying to sell it. True SCJ blocks are relatively rare and not something someone will let go of for very cheap unless it is well and truly trashed. Get the casting code to verify.
In any case, even a standard block will handle 700 HP without breaking a sweat (or anything else important or expensive). Plus, they are plentiful and cheap.
Brad
Hotshot
Joined: Dec 2003
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From: iowa
Brad casting code will NOT tell you if it's a SCJ block only the fact of having 4 bolt mains will the thunderjet 429 (grandmas 429 in here mercury) has exactly the same casting code, and is basically meaningless unless it's something like a D9TE casting code which tells you it's NOT a SCJ.
Also save it for what, he is talking about 700hp at what level do you consider appropriate for a 4 bolt factory block?
Also save it for what, he is talking about 700hp at what level do you consider appropriate for a 4 bolt factory block?
Elder User
Joined: Jan 2004
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The thicker-web main blocks will have casting code D0VE (although there are a very, very, few thick web D1 coded blocks - think 'hen's teeth'). The four-bolt caps were in the #2, 3, and 4 positions. The only blocks that were used for the four-bolt-main SCJ applications were the D0OE coded blocks. Standard block casting codes will start with C8, C9, D1, or D9. The D9 is the 1979 and later block, which is externally balanced. Some sources reference a D5 coded truck block, but I have never talked to anyone who's actually seen one.
There are plenty of 700+ hp motors using standard blocks. If you absolutely have to have a 4-bolt main block for some ultra-radical 1000+ hp app you can usually buy a prepped aftermarket block cheaper than you can buy an original SCJ block. If it truly is an SCJ block and you can get it cheap, I'd sell it to someone who wants a code correct block for a resto and put the money into prepping a standard block and getting better heads.
Brad
There are plenty of 700+ hp motors using standard blocks. If you absolutely have to have a 4-bolt main block for some ultra-radical 1000+ hp app you can usually buy a prepped aftermarket block cheaper than you can buy an original SCJ block. If it truly is an SCJ block and you can get it cheap, I'd sell it to someone who wants a code correct block for a resto and put the money into prepping a standard block and getting better heads.
Brad
Last edited by Brad Johnson; Nov 11, 2005 at 02:32 PM.
Elder User
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My typo. Thanks for picking up on it. Edited and corrected now.
Should have been D0VE, which corresponds to the thick main webbed blocks used in the all the SCJ 4-bolt apps.
Casting code should read "D0VE-A". They came in both 2- and 4-bolt iterations and can only be absolutely identified by visual inspection of the main caps. Unfortunately, the D0VE blocks are a favorite of the hotrod crowd for their thicker main webs. Many of the originally 2-bolt blocks have been converted to 4-bolt caps for performance use. Because of this, just having 4-bolt caps in the right positions does not absolutely guarantee the engine was originally in an SCJ application. I guess it only really matters if you want the absolute most "correct" block for your SJC resto or project.
Brad
Should have been D0VE, which corresponds to the thick main webbed blocks used in the all the SCJ 4-bolt apps.
Casting code should read "D0VE-A". They came in both 2- and 4-bolt iterations and can only be absolutely identified by visual inspection of the main caps. Unfortunately, the D0VE blocks are a favorite of the hotrod crowd for their thicker main webs. Many of the originally 2-bolt blocks have been converted to 4-bolt caps for performance use. Because of this, just having 4-bolt caps in the right positions does not absolutely guarantee the engine was originally in an SCJ application. I guess it only really matters if you want the absolute most "correct" block for your SJC resto or project.
Brad
Last edited by Brad Johnson; Nov 11, 2005 at 02:31 PM.
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Hotshot
Joined: Dec 2003
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From: iowa
Don't forget (and it's VERY HIGHLY UNLIKELY that you have one) but the Boss 9 blocks also had the DOVE-A casting number too, basically all of the 70 blocks had that casting number.
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