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-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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Dec 02, 07 · harmonic balancer Jump to Latest Follow 1 8 of 8 Posts supernovanator · Registered Joined Apr 17, 06 · 5,781 Posts Discussion Starter · #1 · Nov 30, 07 is there any difference between the two measurementwise?They made a 106 CR 305 using 041 number heads that were reworked to 59 cc w/ 194"/15" valves Deck height is 035" w/ a stock 305 head gasket, so is close to say the least!If it is a S10 then it is already been raped Engine is not relevant although the new aluminum I6 really looks good Especially in the older trucks
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Oct 26, 10 · Re305 vs 350 Just sayin The 305 runs and sounds great to me Click on pic federale, Oct 3, 10 #13 willardgreen Member Joined Dec 17, 07 Messages 290 Location Dixieland!Nov 02, 09 · 8 Originally Posted by robot A first consideration is the mounting of the accessories such as the alternator, a/c compressor, steering pump, and AIR pump Most 327 engines do not have drilled heads that accept the brackets while most 350 engines do (and match the 305 drilled heads) Changing the brackets is more expensive than you might thinkApr 01, 09 · Some 305 balancers has the timing mark at the 12 o'clock position whereas a 350 might have it at about 2 o'clock The problem with the 12 o'clock one is that you need the timing chain cover that went with it to be able to align it to the harmonic balancer OR put a timing tape on the harmonic balancer to align to the new timing tab
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Builds and Examples April 11, 21 Daddy Crab's $5000 '29 Ford RatDec 10, 15 · 305 vs 350 Some great reply's in this thread, and I agree with them all, especially Double Vision MPG can be improved over factory on most engines, with a compression bump and a better cam, and fuel/exhaust work But replacing your 350 with a 305 may get worse, depending on vehicle size and weight, driving style, and transmission/rear gearNext 1 of 2 Go to page Go Last D DaveGardner · Registered Joined Sep 26, 08 ·
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First 2 of 2 Go to page Go GMCTruxrule · Registered Joined Aug 2, 05 · 6,017 Posts #21 · May 8, 10 454 you will never look backStart date Apr 9,Mar 23, 17 · The 302 Ford combined a 40inch bore with a 30inch stroke This compares to a 3736inch bore and longer 348inch stroke for the 305 The 305 Chevy is often chastised for its small bore, but
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May 16, 09 · Using modern era HP ratings the 305 was rated at HP and the 350 was rated at HP Alot depends on how the motor was equipped such as carbed, injected, from CA, and so on If you have a specific 305 vs 350 let me know and I'll give you the HP numbers Just realized that the above HP ratings were printed from my GM truck bookChevrolet 305 and 350 cubicinch engines are virtually identical, differing only in cylinder bore size To identify any Chevrolet smallblock V8 engine, the engine ID number must be matched to a listing of suffix codes, which identifies the details of the engine in question, including original application, horsepower, year of manufacture and technical specifications1 of 28 Posts 1;
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Inspired by the popular Chevy 350, the 305 had a more narrow bore and was placed in many widebodied GM model cars The Chevrolet Camaro, Caprice, Malibu, El Camino and Monte Carlo implemented the 305 along with the Pontiac Firebird and Grand Prix, Buick Skylark and Regal, the Oldsmobile Cutlass and Custom Cruiser, and the Cadillac BroughamJul 08, 08 · 305 vs 350 Discussion in 'The Hokey Ass Message Board' started by Pickup Guy, Jul 7, 08 Page 1 of 3 1 2 3 Next > Joined Jan 16, 06 Posts 192 Profile Page Pickup Guy BANNED from USA well I had a thread I started a short time ago I was kinda getting to the end of it and everyone bailed on meThe 305 also became the standard V8 in GM's C/K truck series, and was even used in the Corvette for California in 1980 Crankshafts used with the 305 had the same casting number as the 350 with one discernible difference the 305 crank is lighter in weight to compensate for engine balancing
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Nov 27, 10 · Now let's take that 305ci engine and multiply 305 x 11 = 3355 Ibft of max torque We're down roughly 50 Ibftand that's just at torque peak So a 305 up against a 350 (even at the same horsepower) will always lose to the larger engine because the 350 will make more torque I completely agree that a 305 can be built to make 450 hpYou can still put a 305 balancer on a 350 and use the same timing mark and set timing right?May 10, 10 · 305 vs 350 Jump to Latest Follow 21 30 of 30 Posts Prev 1;
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Mar 02, 1999 · A 305 has 45 less cubic inches than a 350, so it requires conservative camshaft selection Westech selected Comp Cam's dualpattern XE262H10 Xtreme Energy hydraulic flattappet profile The choiceMar 31, 06 · The harmonic balancer for the '84 305 ad 350 are the same part (same part number) The heads look EXACLY the same Most the 305 parts fit directly onto the 350 and/or have the same part number The main difference I noted were the starter and the flex plate was different different starter to fit the larger 168 tooth flex plateJul 18, 08 · 8,305 Posts #3 · Dec 26, 07 you can just put a 350 long block in with your 305 intake ant throttle body it will run fine but, to get even more performance out of it, then you should find a throttle body off a 350 look under the hoods of all the pickups in the junkyards that are from around the same year as your Camaro so the throttle
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Mar 28, 19 · Whether the tranny will hold up or not is a loaded question and ALL depends on the health of the trans Years ago i took the 305 out of my 77 and put in a crate 350 (before LS swaps were a thing) and I just kept my trans in it without doing anything Well, pretty shortly after I found out I need a trans rebuild because it was tiredIntake ports were untouched w/ only bowl work done They taped up the pistons and ground some exhaust valve clearanceBut it can't tell you what crank and pistons the remanufacturing house stuffed in it They are notorious for playing mixnmatch with whatever components may be laying around the shop to make up the cu in
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Mar 13, 04 · RE 305 and 350 crank/rod interchan If you check the cam specs you will also find that the 350 cam has about 12 thousands more lift I had a 350 that I bought a new stock cam and lifters for and 3 months later the motor got trashed Dont remember why, but the cam and lifters were still like newJun 15, 06 · The 305 is an excellent allaround performer as well It's just a 350 with a smaller bore and makes a perfect daily driver motor In stock form, you won't notice much (if any) difference between the 307 and the 305, assuming both are mechanically sound and in a good state of tune, so either one will work for what you're afterDec 06, 01 · 305 HO heads vs 305 Votec heads Jump to Latest Follow 350 vortec heads are great but I am not sure what the difference between the 305's and 350's vortecs are'78 chevy truck355, 941, vortec heads, XE268, vortec rpm intake, 750 edelbrock, flowtech headers and terminators
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Sep 16, 09 · 352 Posts #3 · Sep 14, 09 What underramarmor said and also the 305 has a slightly weaker piston and weak valve seats, so the 325 can be abused a little bit more EGT wise From what I have read the 325 will get to 500ish rwhp easier, but the 3rd injection event makes it harder than the 305 to get the higher hpApr 10, · 305/30 vs 305/35 on gt350 non R Thread starter Tonymustang302;1 is dustproof and waterresistant Garmin Forerunner 305 Garmin Forerunner 310XT The device is dustproof and waterresistant Waterresistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water 2 sweat resistance
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