2strokesmellgud Posted June 30, 2015 Report Posted June 30, 2015 This head makes it so much easier to install with the one piece design. At first I wasn't a fan of the acorn topped cool head but after the install it's an improvement over my old noss. Head. Plus uses same domes with only 3 orings. Horsepower wise I didn't notice any seat of pants gains (didn't expect any) but for 25$ cheaper than most heads and easier installation it's a great swap IMO. 3 Quote
RagunCajun Posted July 3, 2015 Report Posted July 3, 2015 i wonder what head is on my 521. good benefits here. Quote
dave5.0 Posted July 4, 2015 Report Posted July 4, 2015 Cool. Uses pd style domes or? I wouldn't mind shit canning a few dozen orings. Quote
2strokesmellgud Posted July 4, 2015 Author Report Posted July 4, 2015 (edited) Note sure on pro design but my noss domes went in without a problem I checked clearance before running it ran fine with the noss domes. Edited July 4, 2015 by 2strokesmellgud Quote
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