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Old 08-12-2003, 01:35 PM
76Bird 76Bird is offline
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Join Date: Aug 2003
Posts: 2
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Hey guys. I just want to get some input on an engine i built recently in my 76 Firebird. What kinda numbers should this make??

Pontiac 350:
-Bored .040 over
-Wiseco Flat tops (8.5:1)
-Power seal rings
-Mellings Cam (204/214 dur. .422/.444 lift)
-BB chevy adjustable valvetrain
-6X-4 Heads shaved .030
-Stock Intake Manifold from 1975 455
-Holley 650cfm Spreadbore
-ARP bolts

Just curious how much HP this set up is netting me, I'm Looking to add a Performer intake, and Headers.
Also a stall converter (th-350) and gears (3.42's)

  #2  
Old 08-12-2003, 01:35 PM
76Bird 76Bird is offline
Junior Member
 
Join Date: Aug 2003
Posts: 2
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Hey guys. I just want to get some input on an engine i built recently in my 76 Firebird. What kinda numbers should this make??

Pontiac 350:
-Bored .040 over
-Wiseco Flat tops (8.5:1)
-Power seal rings
-Mellings Cam (204/214 dur. .422/.444 lift)
-BB chevy adjustable valvetrain
-6X-4 Heads shaved .030
-Stock Intake Manifold from 1975 455
-Holley 650cfm Spreadbore
-ARP bolts

Just curious how much HP this set up is netting me, I'm Looking to add a Performer intake, and Headers.
Also a stall converter (th-350) and gears (3.42's)

  #3  
Old 08-14-2003, 06:44 PM
b-man's Avatar
b-man b-man is offline
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Join Date: Sep 2002
Location: Sunny So Cal
Posts: 17,613
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Edelbrock built up a later 400 with 8:1 compression and used the Performer intake and cam (same cam specs as yours) and got 300 HP using small-tube headers. I would say close to 270 HP for your 350 with headers and the Performer intake, should make a nice street engine. The 3.42 gears are a must for good street performance, a 2500 stall converter will add quite a bit to this combo as well.

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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/3.08
2002 WS6 Convertible LS1/4L60E/3.23
1966 VW Type 2 Single Cab Pickup 140hp 2276
1956 VW Type 2 Panel Van 36hp 1200
1957 VW Type 1 Beetle 180hp 2276
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