350 heads on a 305
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Joined: Jul 2001
Posts: 3,974
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
Umm it really depends on what size valves and size of the combustion chambers. Anything higher than 64cc will reduce the compression and you will be kicking yourself. And some valves wont clear unless you bored the block out. Of course to make ant soild suggestion we need to know what size heads casting numbers will help detremine that and what mods have been done to the block
"Ie" bored over with dome pistions.
SSC
"Ie" bored over with dome pistions.
SSC
This has been beat to death. Check the archives, or do a search.
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'89 Red Formula 350- 350 .060 over forged pistons 232* @ .020 cam Performer RPM Holley 750 DP Vortec 1.94 1.50 Accel Coil and dist. Hedman shorty headers Dual Exhaust w/ cutouts 1LE WS6 suspension, wheels, and brakes, 9 Bolt 3.27 Posi Edelbrock LCA's & Track bar subframe connectors 700R4 Harwood snorkel scoop Eclipse Head Unit Delco Bose Speakers 2 12" Pioneer subs w/ 400 watt/chanel amp
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'89 Red Formula 350- 350 .060 over forged pistons 232* @ .020 cam Performer RPM Holley 750 DP Vortec 1.94 1.50 Accel Coil and dist. Hedman shorty headers Dual Exhaust w/ cutouts 1LE WS6 suspension, wheels, and brakes, 9 Bolt 3.27 Posi Edelbrock LCA's & Track bar subframe connectors 700R4 Harwood snorkel scoop Eclipse Head Unit Delco Bose Speakers 2 12" Pioneer subs w/ 400 watt/chanel amp
<font face="Verdana, Arial" size="2">Originally posted by fourspeed:
will they work? any problems with them being installed on a 305 tpi, any hints or suggestions</font>
will they work? any problems with them being installed on a 305 tpi, any hints or suggestions</font>
should use 350 head gaskets. I did this with
305 gaskets and had a heating problem, then I
put the 350 gaskets on and the heating problem went away.
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82 cross-fire, 410 gears
700r4
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NinjaNife
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Aug 23, 2015 11:49 AM




