Street Machine - - Your Stuff -

WHILE the leg­endary 426 Chrysler Hemi is with­out doubt the most fa­mous, it is far from the only Detroit V8 fit­ted with cylin­der heads fea­tur­ing hemi­spher­i­cal-style com­bus­tion cham­bers. De­vel­oped to take on Chrysler’s fa­mous 426 on the high-banked NAS­CAR ovals, Fo­moco’s ef­fort was the Boss 429 – also known as the Shot­gun, or Boss ’9. It is be­lieved that less than 1400 were fit­ted to pro­duc­tion cars – namely 1969 and 1970 Boss 429 Mus­tangs. Ford’s rac­ing part­ners, Kar-kraft, plus Hol­man & Moody, fit­ted Boss 429s to a few other cars, but these were mostly de­vel­op­ment mules or pur­pose­built race cars. Gen­uine Boss Mus­tangs are a world­wide col­lectible, with pre­mium ex­am­ples fetch­ing in ex­cess of US$400,000. Given the en­gine’s scarcity due to low pro­duc­tion num­bers and the col­lec­tor value of re­stored Boss-pow­ered ma­chines, fac­tory en­gines are all but im­pos­si­ble to find. But af­ter­mar­ket com­pa­nies like Ford Rac­ing, Elim­i­na­tor, Kaase and Sonny’s have all tooled up to churn out re­pro­duc­tion blocks and/or cylin­der heads – much to the de­light of Ford fans the world over.

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