May 08, 10 · the 305 & 350 are basically the same engine the 305 just has a smaller bore (3736 vs 4000) not quite the power or torque, but durability should be identicalApr 04, 05 · The 305 shares the same stroke as 350, but has a much smaller bore Because of the small bore, the 305 has a few limiting factors The valves are shrouded by the small bores, some will also argue that you cant use 2s in it either, cause they hit the cylinders I personally dont feel a 305 needs 2s anywayit is only 305 CI after allThe 9092 350 TPI FBody engines (Camaro and Firebird) used the ECM, and so did the 9092 305 TPI engines The 1985 305 TPI engines used ECM, which is the same as the 1985 350 TPI ECM (350 was only available on the Corvette in 1985) The Corvette used the ECM on the 9091 350 TPI engines
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305 vs 350 heads
305 vs 350 heads-Through much of the 80's the 305 became an alternative to the 350 as the main performance engine in the F body cars and even made an appearance in the Corvette for one year in 1980 The first engine in this family was the medium journal 262 in 1975, and the last being medium journal 305Jul 12, 18 · I only wish I had info on the 305 crank vs a 350 in photographic form to show you, but suffice to say, larger holes/more of them means balancing more weight Since 305s use lighter pistons this should equate to a 350 crank unless the opposite is true There have been stories for years about 305 rods being smaller or thinner than 350 rods but I
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Aug 01, 09 · The 305 and 350 use a 3480" stroke crank Theres no reason to start getting into strokers just get a 350 In a 26ft boat you want as much tq as you can get and unless you want a 3 then stick with the tree fitty Cheap easy upgrade in power305 heads on a 350 You will find lots of hate on this one Putting 305 heads on a 350 was a good way to bump compression back in the day when compression was low, and aftermarket heads were almost "unattainable" Those days are long gone, and decent heads (be they aftermarket or Vortec) are cheaper than getting work done on old headsMay 22, 09 · Now, for POTENTIAL performance, when you take a close look at the 307 vs 305, the 307 is the winner, hands down The 305 has a VERY small bore (like the original 5556 265s), whereas the 307 has the same bore as a 2 (3875) If you bore a 307 060 over and drop in a 350 crank, you get about 338 cubic inches
Nov 01, 12 · It also depends on the 350 A lot of the small port mid 70's 350's were no better than the 305 A bit more torque but still kinda worthless in stock form Honestly your best bet is an ls motor Most bank for the buck You can get 53's with all the wires, ecm, and accessories for about 5800 They are also very well suportedApr 09, 10 · 2,267 Likes Received 108 Joined Jun 29, 09 Location bakersfield should be the same considering there is no phyical difference on the out side of a 305 and 350Apr 16, 10 · The casting number on the block will tell you what it started life as,, a 3736" bore of a 305 or a 4" bore of a,, 302, 327 or 350 or???
Aug 11, 10 · the 350 at 1051 compression i would try and get that ratio down to about 101 with a decent set of heads, a good cam, intake and headers you can make around 350 hp (with decent stock iron heads that is) the carbed 305 HO were advertised at 250hp and i havent seen much that were living up to that much hpJan 11, 07 · Then added 350 rods b/c the 305's are too skinny!!Jul 30, 09 · The 350 is much more modable, and makes power more reliable There is much more aftermarket for the 350 Its probably a 305 tpi if its a 91 the Fuel injection system is a real bottleneck If i recall the throttle body is long arm, and so makes good torque, but doesnt make great hp as it doesnt do well at high rpms
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Oct 29, 03 · A 350 has more torque than a 305 Hp ratings for 305's range from just over 100 horse to around 0 stock and 350's range from about stock THose are really rough estimates for bone stock mills You'd have to be more specific if you want more accurate numbersMay 17, 08 · 305 to 350 TBI swap May 13, 08, 0739 PM I helped a guy form church put a 350 he bought into his 1990 chevy truck The thing runs, but has a idle and part throttle stumbles I runs fine at WOT but I am guessing it is lean We used all of the parts off the 305 on the 350Sep 29, 10 · 350 is same stroke as 305 but 305 bore is smaller 327 is same stroke as 307 but 307 bore is smaller 327 large journal (6869) and 350 block can interchange People in the past have bored the 307 block out to accept 327 pistons or even changed the crank and pistons to make a 350 Kind of risky to bore a 307 block out to a 4 inch bore though
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Aug 28, 10 · 305 and 350 are exactly the same except for piston size, what fits one fits the other (9 out of 10 times) Easiest way to differentiate is 305 is a 5 litre engine and the 350 is a 57 litre engine Should be stamped on the blockThe Chevrolet 305 was the engine of choice for millions of fullsized GM cars and trucks that were too large for a V6 but didn't require a 350 just to cruise around town However, hotrodders from the dawn of time have made a religion out of modifying just such pedestrian offerings and turning them into hardcore racersJul 09, 12 · The 305 has a 1/4" longer stroke than the 327, so it just might have more lowend torque The streetstock 327's I worked on back in the 1960's and 70's were notorious gasguzzlers, although they made very good dirt track race engines after some pretty radical modifications A lowmileage 305 will probably make a better street engine for you Jerry
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Jun 04, 09 · You can make a 305 mimic a 350 You will have to put titanium sleeves in it though The real problem is a 350 is a 4 bolt main designed for punishment a 305 is a 2 bolt main you will rip the crank right out of the block if trying to punish it The titanium sleeves are really pricey then having to pay for the machine work also priceyJan 05, 09 · 305 vs 350 hp Jump to Latest Follow Hey everyone!Little quarter mile run back in the summer
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Dec 17, 18 · April 15, 21 Daily Driver Engine Duel ~ Chevy 350 vs Dodge 360 Technical Info April 12, 21 Big Block 440 Powered 1968 Road Runner ~ First Start In 40 Years!Apr 17, 09 · The 350's low end grunt is always there Of'course the 305 is not a bad motor at all, I've seen them built up rather nicely As Bustercherry907 stated above, 350 heads might be ideal as they lower the compression enough for a bigger cam, which in turn will lengthen valve duration, packing more air and fuel in your cylindersEnter your ride HERE to be a part of this month's Ride of the Month Challenge!
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