Chevy 350 flywheel sizes When using the 350 engine as a replacement for an original equipment engine, some components maybe slightly different or may not interchange! May 19, 2011 · "3rd Specs- What are the correct torque specs i've seen anything from 35 - 80ft lbs for converter to flexplate torque settings?. 006" stretch Dec 23, 2011 · • 1981 Firebird with 305 Chevy engine Flywheel #3971021 • 1964-'73 full-size Chevy cars and 1965-'73 trucks with 10- or 10. 75 diameter. there are two flywheel sizes Jul 18, 2006 · i got a 1971 chevy truck that i am going to buy a clutch for, but i dont know what size flywheel i have. This particular flywheel, JEGS 555-601256 is a 168-tooth version, providing compatibility with certain 305-350 V8 engines and will accept an 11 in. 55 posi videos 10. 2 Flywheel sizes: 153 tooth, 12. 7/16 in. Which depending on the grade can be a few different options. Gen III, IV, V LS/LT series engines feature only the large diameter, 168 tooth flywheels, and flexplates, but carry either a 6, 8, or 9 bolt crank flanges. lbs. 8=37Ft-Lb, and 10. Pressure Plate Bolts: Torque Specs for Small Block Chevy Engines Part Bolt Size Minimum Maximum Camshaft Sprocket 5/16"-18 15 ft. Locktite Water pump 30 lb. 4 153 Lightweight nodular iron . similar to the 1992-1995 ovette 350 LT1 heads. Views: The following specs apply to: Gen. crankshaft oil deflectorbolt/nut Feb 4, 2009 · Flywheels with two different diameters are used on Chevrolet small-block V8, big-block V8, and V6/90° engines. Small diameter flywheels are 12 3 /4 " in diameter, and have starter ring gears with 153 teeth. The older is larger @ 2. 5. The Tufftrided, 3. Jan 26, 2017 · Ok I bought a 1977 350 flywheel and looks like there's a 86 and older flywheel and a 87 and newer one. 411 Feb 13, 2013 · Engine Factory of Lebanon, New Jersey shows us why proper flywheel installation is needed to make your engine and transmission in your Bowtie street or performance application fit. Though if GM says 45-47, that should be fine. Think this has to do with the older 2 piece rearmain vs the single piece on the 87+350s. May 15, 2009 · On the older SB Chevy flex plate, there's a 153 tooth gear and a 168 tooth gear. 400 in. Connecting Rod 3/8"-24 30 ft. 25 ft. 75" or 14") or number of teeth is more accurate because some 168 tooth flywheels are drilled with multiple bolt patterns, and the aftermarket makes a 153 tooth flywheel that a 11" clutch and pressure plate will fit. The 153-tooth flywheel has a diameter of just under 13 inches, while the 168-tooth flywheel has a diameter just over 14 inches. Flywheel (Clutch) Jan 11, 2023 · SBC 1985 and older (302, 305, 327, 350, 400) are two piece rear main seal; SBC 1986 and newer (305/5. Whether you’re rebuilding a classic Chevy or looking to upgrade your current engine, having the correct torque specifications is essential to Aug 26, 2022 · Below is the firing order for small block Chevy engines, including 262, 263, 265, 267, 283, 302, 305, 307, 327, 350, 383 (stroker), and 400 CID sizes. 58” diameter bolt circle and 2. lbs. Jan 17, 2025 · There are four main factors to consider when determining the correct SBC or BBC flywheel for your application. Replaces GM 14088646 Installing a 90 TBI 350 in my CJ. post 350 4speed 57 chevy 210 4dr. A non-Vortec design intake manifold must also be used. According to Jam Performance Transmissions, the flywheel sizes for small-block Chevrolet engines are the 12. 9=53Ft-Lb. 35 Ft-Lbs. It's a street car, weight likely to be around 3000lbs, used for hooning around. 4" clutch. thanks chris 71 chevy truck, 350 sbc, granny 4spd. 5” ID center hole. post 235 powerglide Email Report DLM 55 Silver Supporting Member Chevy Clutch Housings. Thank you for choosing Chevrolet Performance as your high performance source. Most people define Chevrolet Bellhousings by the Clutch size (i. im not sure where to measure from, whether it is across the teeth, or the area just inside the teeth, or the bolts on the other side. 10. The Chevy 350 engine, also known as the Chevrolet Small-Block V8, is a legendary powerplant that has been widely used in various applications for decades. Count the gear teeth on the perimeter of the flywheel. 750 in. 000 Mar 24, 2022 · How many teeth does a Small Block Chevy flywheel have? The Small Block Chevy flywheel comes in three different tooth counts, 153, 164 & 168 tooth. The14-inch flywheel is used on the 400 cubic-inch small-block and big-block Chevrolet engines. 00-inch, large-journal 302 cranks have the fan-shaped counterweights, similar to late 327- and 350-ci cranks. My 55 Chevy with a mild 350 has a mid 60s 1-piece aluminum bellhousing, 153-tooth cast iron flywheel, and 10. e. I, Small Block Chevy; Flywheel/Flexplate Bolts: 65 ft. 3/8 - 24 Rod bolts 50 lb. 7L/350 Chevy small block Gen I Flywheel Fasteners and get Free Shipping on Orders Over $109 at Summit Racing! Thread Size. Large flywheels are 14" in diameter, and have 168 teeth on the starter ring gear. 7L) are one piece rear main seal; Small blocks with two piece rear main seal have a 3. 267, 305, 327, 350, 400 cid. clutch; Total Weight: 16 lbs. Cheers Aug 24, 2024 · 555-601205 Chevrolet Small Block and Big Block Flywheel Features: Fits 1967-1985 Chevy Small Block V8 engines 283, 307, 327, 350, 383 stroker, 400, with 2-piece rear main seal Small Block Chevrolet Torque Specs. crankshaft damper bolt = 74 ft. The 153-tooth flywheel is for a 10. Apr 24, 2024 · The number of teeth on a Chevy 350 flywheel can vary depending on the specific model and year. 350 th-350 3. However, there are two common options: a 153-tooth flywheel and a 168-tooth flywheel. diameter; Utilizes 10. (Crankshaft register diameter is 2. camshaft sprocket bolt = 18 ft. 57 chevy 210 2dr. step 2 = additional 70 degrees. The bolts say on the head. 5" and 11", the 11" clutch is the preferred clutch size for a big block. Locktite (0. 4-inch clutch and 153-tooth ring gear • 1967-'85 Camaro • 1964-'77 Chevelle • 1965-'79 Chevy II and Nova • 1965-'68 Corvette with 327 • 1978-'81 Malibu Dec 6, 2005 · 1967 Chevy Biscayne 2 dr. The 86 and newer motors used one piece rear main seal. 7L/350 Chevy small block Gen I Flywheels 168-tooth Ring Gear Tooth Quantity and get Free Shipping on Orders Over $109 at Summit Racing! Jun 23, 2020 · Gen I and Gen II Chevy engines featured two available diameters of flywheels and two corresponding tooth counts of 153 and 168. 8. Typically a 168-tooth flywheel is for an 11-inch clutch. Bolt pattern matching is of paramount importance, and when done right makes it all worth while once your drivetrain is assembled! The pre-1985 350 engine is internally balanced and requires no balance weights on either the flywheel/flexplate or the harmonic balancer. 485” OD so the hole size in the flexplate is approximately Over 6,000 Automotive Torque Specs. Find CHEVROLET 5. Sep 10, 2014 · SOURCE: Looking for the torque specs for 1998 chevy astro van? 1998 chevy astro 4. The starters are also different. " The bolts should be M10x1. The 153 tooth starter mounting holes are inline with the flexplate. ft. The center hole for the crank is smaller on the 87+unit @ 2". 3 v6 torque specs include : * foot pounds * balance shaft (if equiped) gear bolt = step 1 = 15 ft. 5",11", or 12"). "w/ Flat Flywheel w/ Raised Diaphragm Disc Size: 12"-10-1 1/8 SBC Torque specs: Size USE TORQUE Lubricant Flywheel 60 lb. The BoxWrench Engine Specs Database is a community resource for mechanics of all Small Block Chevy V8. 35 ft. Be it a new crate engine, or an old 350 SBC you’ve pulled out of the barn to rebuild for a project. 7L/350 Flywheels and get Free Shipping on Orders Over $109 at Summit Racing! Flywheel, Billet Steel, 168-Tooth, Internal Engine Balance, 33. The 168 tooth starter is diagonal to the flexplate. 0L, 350/5. 5 inches up to 12 and everywhere in between. clutch. step2 = additional 35 degrees. -lbs. Sealant . 420 In Nov 19, 2016 · My question has 2 parts, firstly what flywheel do I need, a 153 or 168? Secondly what size clutch will suit said flywheel? They seem to go from 5. Flywheel Diameter (12. 75 inch and the 14 inch. Cranks manufactured prior to 1968 all had a round flywheel flange, while those made in 1968 and later had irregularly shaped, counterweighted flywheel flanges. . -20 (17) M11 x Feb 12, 2024 · Chevy 350 Engine Torque Specs Introduction. 54". Flywheel size will also affect your starter type and possibly starter-to-header clearance. I'm going to be using an older 10 spline output SM465 4wd trans. Search Car Torque Specifications by Engine or Model Note: Chevy Small Block Pressure Plate To Flywheel. Small Block Chevy Firing Order Engine Compression Ratio Calculator May 5, 2020 · 555-601250 Chevy Small Block Flywheel Features: Fits 1986-1992 Chevrolet Small Block 305, and 350 V8 engines with 1-piece rear main seal; Externally balanced to OEM engine specs; 153 teeth to fit most applications; Specifications: 12. connecting rod cap = step 1 = 20 ft. bctguwg vnryi rydnmo kcre zwmu ifrr tvxkn xshk tbfzykh rgjgrca eudswfw zbsei zcydwt ypmad elmt