390 build up ?
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Joined: Mar 2003
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390 build up ?
Here's a idea of what's in the 390 so far:
I have a 1969 390 bored .030 and I'm going to run fresh 428CJ heads, hooker headers, 750 Holley, 428 PI or 428CJ intake on it. What other things should I add while the engine is out?
Should I dump the other intake or run the performer RPM intake and cam combo or use a torker intake?
I'm not sure what the compression ratio is at this time.
What kind of HP am I looking at?
Thank you for any help.
I have a 1969 390 bored .030 and I'm going to run fresh 428CJ heads, hooker headers, 750 Holley, 428 PI or 428CJ intake on it. What other things should I add while the engine is out?
Should I dump the other intake or run the performer RPM intake and cam combo or use a torker intake?
I'm not sure what the compression ratio is at this time.
What kind of HP am I looking at?
Thank you for any help.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
390 build up ?
I think we need more info. What is it going into? Is it street driven, or drag raced, or what? Judging from the carb you're gonna use, and the intakes you suggest, I would guess this is going to be a performance engine. I can tell you what I'm putting into my 390, of course mine is going into a truck, so you might want to be a little more aggressive with the cam:
Crane 343941 cam
Performer RPM intake
TRW forged flat top pistons
Ported C7AE-A heads with polished chambers & hardened exhaust seats
~9.5:1 compression
Holley 600 vacuum secondary
That's what I'm using, for what it's worth.
You might want to pay some attention to the valve train if you go with a higher lift cam. That's something I'm still looking at. Have fun and let us know how it goes!
Crane 343941 cam
Performer RPM intake
TRW forged flat top pistons
Ported C7AE-A heads with polished chambers & hardened exhaust seats
~9.5:1 compression
Holley 600 vacuum secondary
That's what I'm using, for what it's worth.
You might want to pay some attention to the valve train if you go with a higher lift cam. That's something I'm still looking at. Have fun and let us know how it goes!
