Engine Help Me Pick New Valve Springs

tannerc91gt

This last 25% is foreign territory at this point
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Nov 29, 1999
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Still working on this Windsor build, and have hit another snag. Not in any kind of hurry as its November, so I'm looking over every little part. My AFR 205s are springed for a solid roller motor (225 on the seat) which is going to be way too much for this Hyd Flat Tappet motor.
Going to get a set of PAC's just need a professional opinion on what specs to look for.
Going to save these springs as the next combo will be a solid roller 408.

Combo is as follows
399ci
AFR 205cc 58cc heads
XE284H camshaft will be a little south of .600 lift
TFS1.7 stud rockers
Comp magnum pushrods

Probably wont see north of 6,500rpm
 
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tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
4,459
3,058
234
Indiana
Current spring:
AFR #8000
1.550" OD Roller Dual Valve Spring, 225 lbs on seat, .710" maximum lift
 

tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
4,459
3,058
234
Indiana
Seriously debating scrapping the flat tappet setup and going solid roller.

Other than a lot more valvetrain maintenance, there really is no downside other than cost.
 
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