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simons cars always make the numbers so by going off his reputation i would say its a good buy best head i have seen was an nms jobby but you then get nms prices
andy you want a lightly ported head for 250hp, mine done by nick waples was very lightly fettled through, only taking away minmal in the areas needed and 3 angles put in !
ask si to do you a head for 250 and im sure it would be less if the price of 410 was for big power
andy you want a lightly ported head for 250hp, mine done by nick waples was very lightly fettled through, only taking away minmal in the areas needed and 3 angles put in !
ask si to do you a head for 250 and im sure it would be less if the price of 410 was for big power
This is true.
The web prices and specs are a guide.
I tend to discuss build options and what is actully required first.
Indead the valve seats and throats are the first to be worked on, then as more air/power is required the ports are then opened up.