305 HP
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Joined: Aug 2005
Posts: 1,068
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From: Ohio, near columbus
Car: 89 iroc-z
Engine: 305tpi
Transmission: wc-t5
Axle/Gears: 10 bolt 3.08 posi (4 now)
Re: 305 HP
sure install a 350 add heads add camshaft.....
as for a 305 making those numbers it will cost boocooh bux......
about 400 is all you will ever get out of a semi streetable 305 thats revving the **** of out of it. Go with 45 more cubic inches and it will be much more docile for sure + cheaper rebuild kits and more head availability.
as for a 305 making those numbers it will cost boocooh bux......
about 400 is all you will ever get out of a semi streetable 305 thats revving the **** of out of it. Go with 45 more cubic inches and it will be much more docile for sure + cheaper rebuild kits and more head availability.
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: 305 HP
I'd massage the heads, re-cam, and make up the deficit with a 100-shot.
I'm serious. 300 hp for driving around with a torquey powercurve in a relatively light 3rd Gen, with the right gearing can be a potent street performer. And then crack the bottle open for the track.
I'm serious. 300 hp for driving around with a torquey powercurve in a relatively light 3rd Gen, with the right gearing can be a potent street performer. And then crack the bottle open for the track.
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Joined: Feb 2008
Posts: 219
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From: Antelope Valley, Ca...So.Cal.
Car: was 85 TA, 91 TA both sold
Engine: was 406, now 305 tpi
Transmission: 85 had700r4,350..91 had t5
Axle/Gears: 323,373,342
Re: 305 HP
Super Chevy Mag. did a smog legal 305 sbc that made 470 tq @ 3800 rpm and 431 hp @ 5400 rpm. the tq was 424 @ only 2600 rpm. That is pretty darm good. I f you want the web site you'll have to email me so I can sent you the site. If you just got the car go over it and make sure it is all tuned up and has no issues then built from there.
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 305 HP
Super Chevy Mag. did a smog legal 305 sbc that made 470 tq @ 3800 rpm and 431 hp @ 5400 rpm. the tq was 424 @ only 2600 rpm. That is pretty darm good. I f you want the web site you'll have to email me so I can sent you the site. If you just got the car go over it and make sure it is all tuned up and has no issues then built from there.
i rather have a fast 305, than a fast 350 anyday...... people get mad when you beat them and they ask you "what kinda motor is in it" and you say "just a 305"
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Re: 305 HP
I would rather build a 307 then a 305 any day . And it will make more power . But the 350 build is the better street engine of all three !
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