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yes the heads will bolt right on but if you are putting a 305 in there the flywheel is different in the sense that the 327 has a small hole where the flywheel meets the crank (you need the starter for the 305)

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17y ago

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Will regular old style 305 heads work on a newer vortec 305 block?

The heads will fit the block, but the vortec intake manifold will not bolt to the old style heads.


Will Vortec 350 heads work on vortec 305 engine?

Yes, they will work. but you wont gain power because the little 305 isn't putting out enough flow to keep up with the heads


Will 1996 305 vortec heads work on 1996 350 vortec motor?

Yes they will with no problems. They are basicly the same heads, Just different CCs.


Do the 305 vortec and 350 vortec have the same heads?

No. The 350 has bigger valves. While you CAN put the 305 heads on the 350, (I can't imagine why you would actually want to) you can NOT put the 350 heads on the 305. Because of the 305's small bore, the valves on the 350 heads will hit the cylinder block.


Will Vortec 350 heads work on vortec 305 engine without any machine work?

Yes they will fit right on there with no machine work are problems.


Will regular 305 heads fit a 350 Vortec engine?

No 305 heads bolt up different then 350 heads If they are 305 vortec they will bolt up. However they do not have the same flow. The 305 vortec head has smaller runners, smaller valves and does not have the same heart shape combustion chamber. Now if you meant the older 305 heads onto a 350 vortce then no they will not. The vortec uses raised runners and the ports will not match. On top of it all the 5.7 vortec has more flow then any other production head. Placing a 305 head in its place would be going backwards.


Do the intake bolts bolt in the top of the block or into the heads on a 305 vortec?

Into the heads only.


Will a block from a 350 5.7 work with heads from a 305 5.0 and 305 intake 1998 If the 350 is not a vortec?

No it Has a different bolt pattern because of the engine size


Can you replace a 350 vortec with a 305 vortec in a 1996 silverado?

Yes you can. There are a few sensors that are different but after swapping them over it will run. The mounts and bolt pattern are the same. You will certainly be stepping back as far as performance and power goes. Not only does it obviously have fewer cubic inches but the heads lack the flow that the 350 vortec heads have, The 305 Vortec heads also do not have the famous Vortec heart shaped combustion chamber as the 350 heads. The 305 head also has smaller valves and smaller runners. You can also swap the other way and place a 350 vortec in where a 305 was. I have personally done these swaps with no troubles at all.


Will 305 vortec heads fit on a 350?

Yes, but I don't know why you would want to use them on a 350. 305's are limited as far as valve size is concerned because their small bore causes clearance problems with the large valve heads... Larger valves will actually hit the block on a 305. Just about ANY 350 head is better than ANY 305 heads.


What Chevy engine heads can you modd your 305 with?

Because of the 305's small bore, you're pretty limited. Large valve heads (2.02/1.60) won't work on a 305 because the valves will hit the block itself. If it's an older 305, your best bet would be the old power pack 283 heads. They flow better than the older 305 heads. Now, if it's a vortec engine, you probably won't do much better than what it had stock. If you are really trying to go fast, the best thing you can do is junk the 305 and replace it with a 350 or a 327.


Will the starter for a 4.3L Vortec V6 fit on a 305 ci engine?

will a 4.3l vortec starter fit a 305 vortec?