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Topic Review (Newest First)
08-30-2012 09:57 AM
soldadito ok maybe new direction. 403 block bored0.30 over to up the comprestion with stock head , still useing cam sk kit with a Edebrock performer 2711, 750 cfm dp, accel super coil and module, headers with a true dual 2 1/2 exhaust. Any insight?
08-29-2012 05:26 PM
soldadito
This is what they look like and what they costed the seller.

Now I found these for $75 and I can see these need to be gone through.
08-29-2012 05:14 PM
cdminter59
403 Olds

Here is a interesting article on the 403 engine. Olds Rocket V8s Here is another article on 403 olds builds Olds FAQ -- 403 CID Engine Detail
08-29-2012 03:46 PM
ap72
Quote:
Originally Posted by soldadito View Post
The 455 heads have 76 cc's not totally sure on the casting #'s at the moment. Well this is starting to seem like I should just use the stock head's for now since i'm running on a budget. Found a set of old 350 #5 heads for 6 bills with shipping, said that they have been rebuilt any insite?. Any advise on reusing the stock heads? They were doing great no smoke or valve chatter.
600 is a lot for plane rebuilt heads. rebuilt with some bowl work and good valves and springs would be a good deal. I have ported #5's on my 72 Cutlass. Ported properly they put any OEM SBC head to shame on flow, the chambers aren't as good as Vortec's of course.
08-29-2012 03:04 PM
soldadito The 455 heads have 76 cc's not totally sure on the casting #'s at the moment. Well this is starting to seem like I should just use the stock head's for now since i'm running on a budget. Found a set of old 350 #5 heads for 6 bills with shipping, said that they have been rebuilt any insite?. Any advise on reusing the stock heads? They were doing great no smoke or valve chatter.
08-29-2012 02:37 PM
ap72 what 455 heads? For a 403 the usual route is to get a set of good 350 heads and have those done, I think you're in for a world of a headache trying to get what you have to work.
08-29-2012 02:06 PM
soldadito
what intake to use with 403 olds?

Hello this is my first time on this sight and of course like many I have a question. I have a 79' T/A with the 403 olds stock block and internals. . Now I got a set of 455 ols heads from a buddy that have been milled .30, will be putting a complete cam kit in. What would be a good intake to run with this since the 403 olds performer does'nt match up. I've seen the Edelbrock 7111 and have it ported to match the heads, is there more options that I can look at and stiil use the stock shacker?

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