My 357 build
Thread Starter
Instructor
Joined: Jun 2015
Posts: 193
Likes: 34
From: Ohio
My 357 build
I am using an ATK short block as a base for my 357 build to drop in my 78 with new Dougs Side exhaust Here are the specs so far:
80-85 4 bolt main block bored .040 over
Hyper flat top 4 v relief pistons
Stock reground and balanced nodular iron crankshaft
Powdered metal rods
Howards Retro roller cam and lifters .525/.525 110 LSA
Lunati double roller timing chain w/ torrington bearing
Cloyes 9-221 quick button aluminum timing chain cover
Melling HV55 oil pump with bolted on pickup
Looking at 64cc 185 2.02/1.60 heads for approx. 9.9/1 compression. Looking at Promaxx, Blueprint, ATK/ profiler heads
Dual plane intake
Probably an Edelbrock carb not sure of 600 or 750 cfm
80-85 4 bolt main block bored .040 over
Hyper flat top 4 v relief pistons
Stock reground and balanced nodular iron crankshaft
Powdered metal rods
Howards Retro roller cam and lifters .525/.525 110 LSA
Lunati double roller timing chain w/ torrington bearing
Cloyes 9-221 quick button aluminum timing chain cover
Melling HV55 oil pump with bolted on pickup
Looking at 64cc 185 2.02/1.60 heads for approx. 9.9/1 compression. Looking at Promaxx, Blueprint, ATK/ profiler heads
Dual plane intake
Probably an Edelbrock carb not sure of 600 or 750 cfm
Thread Starter
Instructor
Joined: Jun 2015
Posts: 193
Likes: 34
From: Ohio
Racer
Joined: Jul 2013
Posts: 307
Likes: 19
From: Kirkland WA
I got an ATK 385 crate motor a couple years ago and they used Profiler 195cc heads. Dyno'd at 486hp and achieved my goal for the street: 500lbs of torque from 3600 to 5200rpm. Not bad! I did a lot of research on aluminum head flow numbers and these heads certainly keep pace with the much more expensive heads. (They know who they are.) Profiler has earned my endorsement.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
I got an ATK 385 crate motor a couple years ago and they used Profiler 195cc heads. Dyno'd at 486hp and achieved my goal for the street: 500lbs of torque from 3600 to 5200rpm. Not bad! I did a lot of research on aluminum head flow numbers and these heads certainly keep pace with the much more expensive heads. (They know who they are.) Profiler has earned my endorsement.
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Last edited by c3_dk; Nov 1, 2015 at 09:45 AM.