Stroker cranks 351C

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hanov0
Posts: 880
Joined: Sat 19 Jan 2008, 19:51
Location: Fourways RSA

Stroker cranks 351C

Post by hanov0 » Mon 31 Aug 2009, 09:56

351 c Old School Stroker
Found this recipe on the net.

Off set grind the oem select grade 90% nodularity iron crank from stock 1.75 inch throws to 1.85 inch throws, reducing the diameter of the rod journals from 2.31 inches to 2.10 inches The 2.10 inch rod journal allows you to use readily available 6 inch long I beam connecting rods designed for the SBC. SBC rods are lower priced than comparable Clevo rods (I beams weigh less than H beams). Choose a nice light, forged, full round skirt piston, compression height = 1.330 inches. After offset grinding the rod journals have the crank tufftrided, have it straightened, chamfer the oil holes, micro polish the journals, have the reciprocating assembly dynamically balanced. 3.70 inch stroke with 4.030" bores increases the displacement to 377 cubic inches. Everyone likes what that small increase in stroke does for a street motor with 4V heads. The oem iron crank is a very durable part. The iron is gentler on the block, the iron surface also retains oil better than steel. The oem crank also has the right oil passages and the standard 351C crank snout. A lot of the aftermarket cranks have Windsor snouts which requires a specialized hybrid timing set and a crank spacer. By using the Ford crank all 351C parts are used, no spacer is needed, etc.

Does any one know who can do this kind of machining here in JHb?
Cheers
Hano'

For custom Aluminum work www.saicperformance.com

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nick sheward
Posts: 158
Joined: Fri 30 Nov 2007, 15:01

Re: Stroker cranks 351C

Post by nick sheward » Mon 31 Aug 2009, 14:39

These strokers ideas are great but where are you going to get a compression height of 1.3 inches off the shelf in a 4.030 bore size? Also the Cleveland piston has offset valve reliefs and these are needed if going over .5 inch lift on the cam. Sounds like a Ross piston to me! Big bucks. :D Cheers!

User avatar
hanov0
Posts: 880
Joined: Sat 19 Jan 2008, 19:51
Location: Fourways RSA

Re: Stroker cranks 351C

Post by hanov0 » Mon 31 Aug 2009, 22:08

How about this one ? Using a 5.7 rod :
http://www.aclperformance.com.au/8MKRY9377.htm
Cheers
Hano'

For custom Aluminum work www.saicperformance.com

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